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Finding the Fourth Proportional to 147,663.57, 203,770.32 and 90,281.48

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Solution

The fourth proportional to 147,663.57, 203,770.32 and 90,281.48 is: 124,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,663.57 : 203,770.32 = 90,281.48 : x
  2. Step 2: Convert to fraction form
    147,663.57/203,770.32 = 90,281.48/x
  3. Step 3: Cross multiply
    147,663.57x = 203,770.32 × 90,281.48
  4. Step 4: Simplify right side
    147,663.57x = 18,396,685,050.82
  5. Step 5: Solve for x
    x = 18,396,685,050.82/147,663.57
  6. Step 6: Final answer
    x = 124,585.13

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1.5x scale

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.