Home / 103,255,235.14-142,502,517.72-77,104,352.13

Finding the Fourth Proportional to 103,255,235.14, 142,502,517.72 and 77,104,352.13

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Solution

The fourth proportional to 103,255,235.14, 142,502,517.72 and 77,104,352.13 is: 106,411,692.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,255,235.14 : 142,502,517.72 = 77,104,352.13 : x
  2. Step 2: Convert to fraction form
    103,255,235.14/142,502,517.72 = 77,104,352.13/x
  3. Step 3: Cross multiply
    103,255,235.14x = 142,502,517.72 × 77,104,352.13
  4. Step 4: Simplify right side
    103,255,235.14x = 10,987,564,305,744,972
  5. Step 5: Solve for x
    x = 10,987,564,305,744,972/103,255,235.14
  6. Step 6: Final answer
    x = 106,411,692.26

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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.