Home / 101,427.20-152,108.40-42,248.60

Finding the Fourth Proportional to 101,427.20, 152,108.40 and 42,248.60

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Solution

The fourth proportional to 101,427.20, 152,108.40 and 42,248.60 is: 63,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,427.20 : 152,108.40 = 42,248.60 : x
  2. Step 2: Convert to fraction form
    101,427.20/152,108.40 = 42,248.60/x
  3. Step 3: Cross multiply
    101,427.20x = 152,108.40 × 42,248.60
  4. Step 4: Simplify right side
    101,427.20x = 6,426,366,948.24
  5. Step 5: Solve for x
    x = 6,426,366,948.24/101,427.20
  6. Step 6: Final answer
    x = 63,359.40

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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.