Home / 102,126.24-140,938.96-56,808.88

Finding the Fourth Proportional to 102,126.24, 140,938.96 and 56,808.88

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Solution

The fourth proportional to 102,126.24, 140,938.96 and 56,808.88 is: 78,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,126.24 : 140,938.96 = 56,808.88 : x
  2. Step 2: Convert to fraction form
    102,126.24/140,938.96 = 56,808.88/x
  3. Step 3: Cross multiply
    102,126.24x = 140,938.96 × 56,808.88
  4. Step 4: Simplify right side
    102,126.24x = 8,006,584,465.96
  5. Step 5: Solve for x
    x = 8,006,584,465.96/102,126.24
  6. Step 6: Final answer
    x = 78,398.90

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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.