Home / 102,000.32-140,758.58-56,677.48

Finding the Fourth Proportional to 102,000.32, 140,758.58 and 56,677.48

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Solution

The fourth proportional to 102,000.32, 140,758.58 and 56,677.48 is: 78,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,000.32 : 140,758.58 = 56,677.48 : x
  2. Step 2: Convert to fraction form
    102,000.32/140,758.58 = 56,677.48/x
  3. Step 3: Cross multiply
    102,000.32x = 140,758.58 × 56,677.48
  4. Step 4: Simplify right side
    102,000.32x = 7,977,841,461.08
  5. Step 5: Solve for x
    x = 7,977,841,461.08/102,000.32
  6. Step 6: Final answer
    x = 78,213.88

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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.