Home / 105,817.29-158,724.19-42,635.87

Finding the Fourth Proportional to 105,817.29, 158,724.19 and 42,635.87

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Solution

The fourth proportional to 105,817.29, 158,724.19 and 42,635.87 is: 63,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,817.29 : 158,724.19 = 42,635.87 : x
  2. Step 2: Convert to fraction form
    105,817.29/158,724.19 = 42,635.87/x
  3. Step 3: Cross multiply
    105,817.29x = 158,724.19 × 42,635.87
  4. Step 4: Simplify right side
    105,817.29x = 6,767,343,824.11
  5. Step 5: Solve for x
    x = 6,767,343,824.11/105,817.29
  6. Step 6: Final answer
    x = 63,953.10

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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.