Home / 103,255,242.83-142,502,528.34-77,104,359.83

Finding the Fourth Proportional to 103,255,242.83, 142,502,528.34 and 77,104,359.83

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Solution

The fourth proportional to 103,255,242.83, 142,502,528.34 and 77,104,359.83 is: 106,411,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255,242.83 : 142,502,528.34 = 77,104,359.83 : x
  2. Step 2: Convert to fraction form
    103,255,242.83/142,502,528.34 = 77,104,359.83/x
  3. Step 3: Cross multiply
    103,255,242.83x = 142,502,528.34 × 77,104,359.83
  4. Step 4: Simplify right side
    103,255,242.83x = 10,987,566,221,099,620
  5. Step 5: Solve for x
    x = 10,987,566,221,099,620/103,255,242.83
  6. Step 6: Final answer
    x = 106,411,702.89

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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.