Home / 115,382.18-159,242.01-66,973.76

Finding the Fourth Proportional to 115,382.18, 159,242.01 and 66,973.76

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Solution

The fourth proportional to 115,382.18, 159,242.01 and 66,973.76 is: 92,432.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,382.18 : 159,242.01 = 66,973.76 : x
  2. Step 2: Convert to fraction form
    115,382.18/159,242.01 = 66,973.76/x
  3. Step 3: Cross multiply
    115,382.18x = 159,242.01 × 66,973.76
  4. Step 4: Simplify right side
    115,382.18x = 10,665,036,159.66
  5. Step 5: Solve for x
    x = 10,665,036,159.66/115,382.18
  6. Step 6: Final answer
    x = 92,432.26

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1.5x scale

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.