Home / 99,405.20-148,913.40-59,844.80

Finding the Fourth Proportional to 99,405.20, 148,913.40 and 59,844.80

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Solution

The fourth proportional to 99,405.20, 148,913.40 and 59,844.80 is: 89,650.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,405.20 : 148,913.40 = 59,844.80 : x
  2. Step 2: Convert to fraction form
    99,405.20/148,913.40 = 59,844.80/x
  3. Step 3: Cross multiply
    99,405.20x = 148,913.40 × 59,844.80
  4. Step 4: Simplify right side
    99,405.20x = 8,911,692,640.32
  5. Step 5: Solve for x
    x = 8,911,692,640.32/99,405.20
  6. Step 6: Final answer
    x = 89,650.17

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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.