Home / 94,909.19-142,363.76-86,989.46

Finding the Fourth Proportional to 94,909.19, 142,363.76 and 86,989.46

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Solution

The fourth proportional to 94,909.19, 142,363.76 and 86,989.46 is: 130,484.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,909.19 : 142,363.76 = 86,989.46 : x
  2. Step 2: Convert to fraction form
    94,909.19/142,363.76 = 86,989.46/x
  3. Step 3: Cross multiply
    94,909.19x = 142,363.76 × 86,989.46
  4. Step 4: Simplify right side
    94,909.19x = 12,384,145,459.20
  5. Step 5: Solve for x
    x = 12,384,145,459.20/94,909.19
  6. Step 6: Final answer
    x = 130,484.16

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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.