Home / 102,930.96-142,079.76-60,502.08

Finding the Fourth Proportional to 102,930.96, 142,079.76 and 60,502.08

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Solution

The fourth proportional to 102,930.96, 142,079.76 and 60,502.08 is: 83,513.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,930.96 : 142,079.76 = 60,502.08 : x
  2. Step 2: Convert to fraction form
    102,930.96/142,079.76 = 60,502.08/x
  3. Step 3: Cross multiply
    102,930.96x = 142,079.76 × 60,502.08
  4. Step 4: Simplify right side
    102,930.96x = 8,596,121,005.90
  5. Step 5: Solve for x
    x = 8,596,121,005.90/102,930.96
  6. Step 6: Final answer
    x = 83,513.46

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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.