Home / 156,931.51-236,251.23-142,981.15

Finding the Fourth Proportional to 156,931.51, 236,251.23 and 142,981.15

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Solution

The fourth proportional to 156,931.51, 236,251.23 and 142,981.15 is: 215,249.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,931.51 : 236,251.23 = 142,981.15 : x
  2. Step 2: Convert to fraction form
    156,931.51/236,251.23 = 142,981.15/x
  3. Step 3: Cross multiply
    156,931.51x = 236,251.23 × 142,981.15
  4. Step 4: Simplify right side
    156,931.51x = 33,779,472,554.31
  5. Step 5: Solve for x
    x = 33,779,472,554.31/156,931.51
  6. Step 6: Final answer
    x = 215,249.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.