Home / 103,103.04-142,279.76-60,664.32

Finding the Fourth Proportional to 103,103.04, 142,279.76 and 60,664.32

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Solution

The fourth proportional to 103,103.04, 142,279.76 and 60,664.32 is: 83,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,103.04 : 142,279.76 = 60,664.32 : x
  2. Step 2: Convert to fraction form
    103,103.04/142,279.76 = 60,664.32/x
  3. Step 3: Cross multiply
    103,103.04x = 142,279.76 × 60,664.32
  4. Step 4: Simplify right side
    103,103.04x = 8,631,304,890.16
  5. Step 5: Solve for x
    x = 8,631,304,890.16/103,103.04
  6. Step 6: Final answer
    x = 83,715.33

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1.5x scale

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.