Home / 125,932.40-188,898.60-102,312.80

Finding the Fourth Proportional to 125,932.40, 188,898.60 and 102,312.80

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Solution

The fourth proportional to 125,932.40, 188,898.60 and 102,312.80 is: 153,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,932.40 : 188,898.60 = 102,312.80 : x
  2. Step 2: Convert to fraction form
    125,932.40/188,898.60 = 102,312.80/x
  3. Step 3: Cross multiply
    125,932.40x = 188,898.60 × 102,312.80
  4. Step 4: Simplify right side
    125,932.40x = 19,326,744,682.08
  5. Step 5: Solve for x
    x = 19,326,744,682.08/125,932.40
  6. Step 6: Final answer
    x = 153,469.20

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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.