Home / 123,931.20-171,027.18-70,214.88

Finding the Fourth Proportional to 123,931.20, 171,027.18 and 70,214.88

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Solution

The fourth proportional to 123,931.20, 171,027.18 and 70,214.88 is: 96,897.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,931.20 : 171,027.18 = 70,214.88 : x
  2. Step 2: Convert to fraction form
    123,931.20/171,027.18 = 70,214.88/x
  3. Step 3: Cross multiply
    123,931.20x = 171,027.18 × 70,214.88
  4. Step 4: Simplify right side
    123,931.20x = 12,008,652,920.44
  5. Step 5: Solve for x
    x = 12,008,652,920.44/123,931.20
  6. Step 6: Final answer
    x = 96,897.74

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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.