Home / 101,631.76-152,447.70-42,435.16

Finding the Fourth Proportional to 101,631.76, 152,447.70 and 42,435.16

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Solution

The fourth proportional to 101,631.76, 152,447.70 and 42,435.16 is: 63,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,631.76 : 152,447.70 = 42,435.16 : x
  2. Step 2: Convert to fraction form
    101,631.76/152,447.70 = 42,435.16/x
  3. Step 3: Cross multiply
    101,631.76x = 152,447.70 × 42,435.16
  4. Step 4: Simplify right side
    101,631.76x = 6,469,142,541.13
  5. Step 5: Solve for x
    x = 6,469,142,541.13/101,631.76
  6. Step 6: Final answer
    x = 63,652.77

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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.