Home / 156,923.20-216,532.80-100,294.40

Finding the Fourth Proportional to 156,923.20, 216,532.80 and 100,294.40

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Solution

The fourth proportional to 156,923.20, 216,532.80 and 100,294.40 is: 138,392.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,923.20 : 216,532.80 = 100,294.40 : x
  2. Step 2: Convert to fraction form
    156,923.20/216,532.80 = 100,294.40/x
  3. Step 3: Cross multiply
    156,923.20x = 216,532.80 × 100,294.40
  4. Step 4: Simplify right side
    156,923.20x = 21,717,027,256.32
  5. Step 5: Solve for x
    x = 21,717,027,256.32/156,923.20
  6. Step 6: Final answer
    x = 138,392.71

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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.