Home / 88,642.49-132,444.59-85,541.81

Finding the Fourth Proportional to 88,642.49, 132,444.59 and 85,541.81

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Solution

The fourth proportional to 88,642.49, 132,444.59 and 85,541.81 is: 127,811.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,642.49 : 132,444.59 = 85,541.81 : x
  2. Step 2: Convert to fraction form
    88,642.49/132,444.59 = 85,541.81/x
  3. Step 3: Cross multiply
    88,642.49x = 132,444.59 × 85,541.81
  4. Step 4: Simplify right side
    88,642.49x = 11,329,548,863.38
  5. Step 5: Solve for x
    x = 11,329,548,863.38/88,642.49
  6. Step 6: Final answer
    x = 127,811.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.