Home / 150,488.30-207,680.40-90,047.36

Finding the Fourth Proportional to 150,488.30, 207,680.40 and 90,047.36

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Solution

The fourth proportional to 150,488.30, 207,680.40 and 90,047.36 is: 124,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,488.30 : 207,680.40 = 90,047.36 : x
  2. Step 2: Convert to fraction form
    150,488.30/207,680.40 = 90,047.36/x
  3. Step 3: Cross multiply
    150,488.30x = 207,680.40 × 90,047.36
  4. Step 4: Simplify right side
    150,488.30x = 18,701,070,705.34
  5. Step 5: Solve for x
    x = 18,701,070,705.34/150,488.30
  6. Step 6: Final answer
    x = 124,269.27

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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.