Home / 115,534.59-159,421.96-64,541.02

Finding the Fourth Proportional to 115,534.59, 159,421.96 and 64,541.02

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Solution

The fourth proportional to 115,534.59, 159,421.96 and 64,541.02 is: 89,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,534.59 : 159,421.96 = 64,541.02 : x
  2. Step 2: Convert to fraction form
    115,534.59/159,421.96 = 64,541.02/x
  3. Step 3: Cross multiply
    115,534.59x = 159,421.96 × 64,541.02
  4. Step 4: Simplify right side
    115,534.59x = 10,289,255,908.80
  5. Step 5: Solve for x
    x = 10,289,255,908.80/115,534.59
  6. Step 6: Final answer
    x = 89,057.80

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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.