Home / 103,255,276.91-142,502,575.66-77,104,393.90

Finding the Fourth Proportional to 103,255,276.91, 142,502,575.66 and 77,104,393.90

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Solution

The fourth proportional to 103,255,276.91, 142,502,575.66 and 77,104,393.90 is: 106,411,750.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255,276.91 : 142,502,575.66 = 77,104,393.90 : x
  2. Step 2: Convert to fraction form
    103,255,276.91/142,502,575.66 = 77,104,393.90/x
  3. Step 3: Cross multiply
    103,255,276.91x = 142,502,575.66 × 77,104,393.90
  4. Step 4: Simplify right side
    103,255,276.91x = 10,987,574,724,904,174
  5. Step 5: Solve for x
    x = 10,987,574,724,904,174/103,255,276.91
  6. Step 6: Final answer
    x = 106,411,750.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.