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Finding the Fourth Proportional to 99,535.80, 149,303.70 and 91,932.60

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Solution

The fourth proportional to 99,535.80, 149,303.70 and 91,932.60 is: 137,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,535.80 : 149,303.70 = 91,932.60 : x
  2. Step 2: Convert to fraction form
    99,535.80/149,303.70 = 91,932.60/x
  3. Step 3: Cross multiply
    99,535.80x = 149,303.70 × 91,932.60
  4. Step 4: Simplify right side
    99,535.80x = 13,725,877,330.62
  5. Step 5: Solve for x
    x = 13,725,877,330.62/99,535.80
  6. Step 6: Final answer
    x = 137,898.90

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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.