Home / 123,595.20-185,544.24-81,510.40

Finding the Fourth Proportional to 123,595.20, 185,544.24 and 81,510.40

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Solution

The fourth proportional to 123,595.20, 185,544.24 and 81,510.40 is: 122,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,595.20 : 185,544.24 = 81,510.40 : x
  2. Step 2: Convert to fraction form
    123,595.20/185,544.24 = 81,510.40/x
  3. Step 3: Cross multiply
    123,595.20x = 185,544.24 × 81,510.40
  4. Step 4: Simplify right side
    123,595.20x = 15,123,785,220.10
  5. Step 5: Solve for x
    x = 15,123,785,220.10/123,595.20
  6. Step 6: Final answer
    x = 122,365.47

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1.5x scale

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.