Home / 115,631.47-159,551.02-64,627.90

Finding the Fourth Proportional to 115,631.47, 159,551.02 and 64,627.90

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Solution

The fourth proportional to 115,631.47, 159,551.02 and 64,627.90 is: 89,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,631.47 : 159,551.02 = 64,627.90 : x
  2. Step 2: Convert to fraction form
    115,631.47/159,551.02 = 64,627.90/x
  3. Step 3: Cross multiply
    115,631.47x = 159,551.02 × 64,627.90
  4. Step 4: Simplify right side
    115,631.47x = 10,311,447,365.46
  5. Step 5: Solve for x
    x = 10,311,447,365.46/115,631.47
  6. Step 6: Final answer
    x = 89,175.10

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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.