Home / 103,255,239.65-142,502,523.93-77,104,356.62

Finding the Fourth Proportional to 103,255,239.65, 142,502,523.93 and 77,104,356.62

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Solution

The fourth proportional to 103,255,239.65, 142,502,523.93 and 77,104,356.62 is: 106,411,698.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255,239.65 : 142,502,523.93 = 77,104,356.62 : x
  2. Step 2: Convert to fraction form
    103,255,239.65/142,502,523.93 = 77,104,356.62/x
  3. Step 3: Cross multiply
    103,255,239.65x = 142,502,523.93 × 77,104,356.62
  4. Step 4: Simplify right side
    103,255,239.65x = 10,987,565,423,636,292
  5. Step 5: Solve for x
    x = 10,987,565,423,636,292/103,255,239.65
  6. Step 6: Final answer
    x = 106,411,698.44

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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.