Home / 105,635.13-158,346.02-66,219.87

Finding the Fourth Proportional to 105,635.13, 158,346.02 and 66,219.87

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Solution

The fourth proportional to 105,635.13, 158,346.02 and 66,219.87 is: 99,262.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,635.13 : 158,346.02 = 66,219.87 : x
  2. Step 2: Convert to fraction form
    105,635.13/158,346.02 = 66,219.87/x
  3. Step 3: Cross multiply
    105,635.13x = 158,346.02 × 66,219.87
  4. Step 4: Simplify right side
    105,635.13x = 10,485,652,528.32
  5. Step 5: Solve for x
    x = 10,485,652,528.32/105,635.13
  6. Step 6: Final answer
    x = 99,262.93

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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.