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Finding the Fourth Proportional to 99,011.80, 148,085.70 and 88,557.40

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Solution

The fourth proportional to 99,011.80, 148,085.70 and 88,557.40 is: 132,449.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,011.80 : 148,085.70 = 88,557.40 : x
  2. Step 2: Convert to fraction form
    99,011.80/148,085.70 = 88,557.40/x
  3. Step 3: Cross multiply
    99,011.80x = 148,085.70 × 88,557.40
  4. Step 4: Simplify right side
    99,011.80x = 13,114,084,569.18
  5. Step 5: Solve for x
    x = 13,114,084,569.18/99,011.80
  6. Step 6: Final answer
    x = 132,449.71

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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.