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Finding the Fourth Proportional to 159,703.80, 239,402.10 and 124,145.40

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Solution

The fourth proportional to 159,703.80, 239,402.10 and 124,145.40 is: 186,098.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,703.80 : 239,402.10 = 124,145.40 : x
  2. Step 2: Convert to fraction form
    159,703.80/239,402.10 = 124,145.40/x
  3. Step 3: Cross multiply
    159,703.80x = 239,402.10 × 124,145.40
  4. Step 4: Simplify right side
    159,703.80x = 29,720,669,465.34
  5. Step 5: Solve for x
    x = 29,720,669,465.34/159,703.80
  6. Step 6: Final answer
    x = 186,098.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.