Home / 99,279.30-148,918.95-57,288.90

Finding the Fourth Proportional to 99,279.30, 148,918.95 and 57,288.90

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Solution

The fourth proportional to 99,279.30, 148,918.95 and 57,288.90 is: 85,933.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,279.30 : 148,918.95 = 57,288.90 : x
  2. Step 2: Convert to fraction form
    99,279.30/148,918.95 = 57,288.90/x
  3. Step 3: Cross multiply
    99,279.30x = 148,918.95 × 57,288.90
  4. Step 4: Simplify right side
    99,279.30x = 8,531,402,834.66
  5. Step 5: Solve for x
    x = 8,531,402,834.66/99,279.30
  6. Step 6: Final answer
    x = 85,933.35

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1.5x scale

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.