Home / 102,000.64-140,757.85-56,677.51

Finding the Fourth Proportional to 102,000.64, 140,757.85 and 56,677.51

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Solution

The fourth proportional to 102,000.64, 140,757.85 and 56,677.51 is: 78,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,000.64 : 140,757.85 = 56,677.51 : x
  2. Step 2: Convert to fraction form
    102,000.64/140,757.85 = 56,677.51/x
  3. Step 3: Cross multiply
    102,000.64x = 140,757.85 × 56,677.51
  4. Step 4: Simplify right side
    102,000.64x = 7,977,804,450.95
  5. Step 5: Solve for x
    x = 7,977,804,450.95/102,000.64
  6. Step 6: Final answer
    x = 78,213.28

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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.