Home / 156,434.81-215,671.20-124,276.13

Finding the Fourth Proportional to 156,434.81, 215,671.20 and 124,276.13

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Solution

The fourth proportional to 156,434.81, 215,671.20 and 124,276.13 is: 171,335.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,434.81 : 215,671.20 = 124,276.13 : x
  2. Step 2: Convert to fraction form
    156,434.81/215,671.20 = 124,276.13/x
  3. Step 3: Cross multiply
    156,434.81x = 215,671.20 × 124,276.13
  4. Step 4: Simplify right side
    156,434.81x = 26,802,782,088.46
  5. Step 5: Solve for x
    x = 26,802,782,088.46/156,434.81
  6. Step 6: Final answer
    x = 171,335.15

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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.