Home / 125,887.30-188,442.15-73,140.10

Finding the Fourth Proportional to 125,887.30, 188,442.15 and 73,140.10

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Solution

The fourth proportional to 125,887.30, 188,442.15 and 73,140.10 is: 109,484.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,887.30 : 188,442.15 = 73,140.10 : x
  2. Step 2: Convert to fraction form
    125,887.30/188,442.15 = 73,140.10/x
  3. Step 3: Cross multiply
    125,887.30x = 188,442.15 × 73,140.10
  4. Step 4: Simplify right side
    125,887.30x = 13,782,677,695.22
  5. Step 5: Solve for x
    x = 13,782,677,695.22/125,887.30
  6. Step 6: Final answer
    x = 109,484.26

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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.