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Finding the Fourth Proportional to 91,073.88, 136,681.47 and 63,189.63

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Solution

The fourth proportional to 91,073.88, 136,681.47 and 63,189.63 is: 94,833.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,073.88 : 136,681.47 = 63,189.63 : x
  2. Step 2: Convert to fraction form
    91,073.88/136,681.47 = 63,189.63/x
  3. Step 3: Cross multiply
    91,073.88x = 136,681.47 × 63,189.63
  4. Step 4: Simplify right side
    91,073.88x = 8,636,851,517.16
  5. Step 5: Solve for x
    x = 8,636,851,517.16/91,073.88
  6. Step 6: Final answer
    x = 94,833.46

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1.5x scale

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.