Home / 147,389.80-203,340.18-90,702.76

Finding the Fourth Proportional to 147,389.80, 203,340.18 and 90,702.76

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Solution

The fourth proportional to 147,389.80, 203,340.18 and 90,702.76 is: 125,134.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,389.80 : 203,340.18 = 90,702.76 : x
  2. Step 2: Convert to fraction form
    147,389.80/203,340.18 = 90,702.76/x
  3. Step 3: Cross multiply
    147,389.80x = 203,340.18 × 90,702.76
  4. Step 4: Simplify right side
    147,389.80x = 18,443,515,544.90
  5. Step 5: Solve for x
    x = 18,443,515,544.90/147,389.80
  6. Step 6: Final answer
    x = 125,134.27

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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.