Home / 91,526.08-137,386.17-81,064.02

Finding the Fourth Proportional to 91,526.08, 137,386.17 and 81,064.02

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Solution

The fourth proportional to 91,526.08, 137,386.17 and 81,064.02 is: 121,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,526.08 : 137,386.17 = 81,064.02 : x
  2. Step 2: Convert to fraction form
    91,526.08/137,386.17 = 81,064.02/x
  3. Step 3: Cross multiply
    91,526.08x = 137,386.17 × 81,064.02
  4. Step 4: Simplify right side
    91,526.08x = 11,137,074,827.28
  5. Step 5: Solve for x
    x = 11,137,074,827.28/91,526.08
  6. Step 6: Final answer
    x = 121,681.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.