Home / 99,581.40-149,663.70-97,831.80

Finding the Fourth Proportional to 99,581.40, 149,663.70 and 97,831.80

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Solution

The fourth proportional to 99,581.40, 149,663.70 and 97,831.80 is: 147,034.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,581.40 : 149,663.70 = 97,831.80 : x
  2. Step 2: Convert to fraction form
    99,581.40/149,663.70 = 97,831.80/x
  3. Step 3: Cross multiply
    99,581.40x = 149,663.70 × 97,831.80
  4. Step 4: Simplify right side
    99,581.40x = 14,641,869,165.66
  5. Step 5: Solve for x
    x = 14,641,869,165.66/99,581.40
  6. Step 6: Final answer
    x = 147,034.18

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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.