Home / 99,007.20-148,424.40-88,509.60

Finding the Fourth Proportional to 99,007.20, 148,424.40 and 88,509.60

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Solution

The fourth proportional to 99,007.20, 148,424.40 and 88,509.60 is: 132,687.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,007.20 : 148,424.40 = 88,509.60 : x
  2. Step 2: Convert to fraction form
    99,007.20/148,424.40 = 88,509.60/x
  3. Step 3: Cross multiply
    99,007.20x = 148,424.40 × 88,509.60
  4. Step 4: Simplify right side
    99,007.20x = 13,136,984,274.24
  5. Step 5: Solve for x
    x = 13,136,984,274.24/99,007.20
  6. Step 6: Final answer
    x = 132,687.16

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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.