Home / 102,440.71-141,318.03-68,457.61

Finding the Fourth Proportional to 102,440.71, 141,318.03 and 68,457.61

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Solution

The fourth proportional to 102,440.71, 141,318.03 and 68,457.61 is: 94,437.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,440.71 : 141,318.03 = 68,457.61 : x
  2. Step 2: Convert to fraction form
    102,440.71/141,318.03 = 68,457.61/x
  3. Step 3: Cross multiply
    102,440.71x = 141,318.03 × 68,457.61
  4. Step 4: Simplify right side
    102,440.71x = 9,674,294,583.71
  5. Step 5: Solve for x
    x = 9,674,294,583.71/102,440.71
  6. Step 6: Final answer
    x = 94,437.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.