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Finding the Fourth Proportional to 139,693.96, 192,358.02 and 125,129.08

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Solution

The fourth proportional to 139,693.96, 192,358.02 and 125,129.08 is: 172,302.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,693.96 : 192,358.02 = 125,129.08 : x
  2. Step 2: Convert to fraction form
    139,693.96/192,358.02 = 125,129.08/x
  3. Step 3: Cross multiply
    139,693.96x = 192,358.02 × 125,129.08
  4. Step 4: Simplify right side
    139,693.96x = 24,069,582,073.22
  5. Step 5: Solve for x
    x = 24,069,582,073.22/139,693.96
  6. Step 6: Final answer
    x = 172,302.24

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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.