Home / 105,247.20-145,233.09-59,916.18

Finding the Fourth Proportional to 105,247.20, 145,233.09 and 59,916.18

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Solution

The fourth proportional to 105,247.20, 145,233.09 and 59,916.18 is: 82,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,247.20 : 145,233.09 = 59,916.18 : x
  2. Step 2: Convert to fraction form
    105,247.20/145,233.09 = 59,916.18/x
  3. Step 3: Cross multiply
    105,247.20x = 145,233.09 × 59,916.18
  4. Step 4: Simplify right side
    105,247.20x = 8,701,811,962.40
  5. Step 5: Solve for x
    x = 8,701,811,962.40/105,247.20
  6. Step 6: Final answer
    x = 82,679.75

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1.5x scale

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.