Home / 112,504.40-155,265.48-64,773.20

Finding the Fourth Proportional to 112,504.40, 155,265.48 and 64,773.20

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Solution

The fourth proportional to 112,504.40, 155,265.48 and 64,773.20 is: 89,392.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,504.40 : 155,265.48 = 64,773.20 : x
  2. Step 2: Convert to fraction form
    112,504.40/155,265.48 = 64,773.20/x
  3. Step 3: Cross multiply
    112,504.40x = 155,265.48 × 64,773.20
  4. Step 4: Simplify right side
    112,504.40x = 10,057,041,989.14
  5. Step 5: Solve for x
    x = 10,057,041,989.14/112,504.40
  6. Step 6: Final answer
    x = 89,392.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.