Home / 125,070.80-187,558.34-61,869.20

Finding the Fourth Proportional to 125,070.80, 187,558.34 and 61,869.20

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Solution

The fourth proportional to 125,070.80, 187,558.34 and 61,869.20 is: 92,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,070.80 : 187,558.34 = 61,869.20 : x
  2. Step 2: Convert to fraction form
    125,070.80/187,558.34 = 61,869.20/x
  3. Step 3: Cross multiply
    125,070.80x = 187,558.34 × 61,869.20
  4. Step 4: Simplify right side
    125,070.80x = 11,604,083,201.99
  5. Step 5: Solve for x
    x = 11,604,083,201.99/125,070.80
  6. Step 6: Final answer
    x = 92,780.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.