Home / 161,726.40-242,589.60-120,254.40

Finding the Fourth Proportional to 161,726.40, 242,589.60 and 120,254.40

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Solution

The fourth proportional to 161,726.40, 242,589.60 and 120,254.40 is: 180,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,726.40 : 242,589.60 = 120,254.40 : x
  2. Step 2: Convert to fraction form
    161,726.40/242,589.60 = 120,254.40/x
  3. Step 3: Cross multiply
    161,726.40x = 242,589.60 × 120,254.40
  4. Step 4: Simplify right side
    161,726.40x = 29,172,466,794.24
  5. Step 5: Solve for x
    x = 29,172,466,794.24/161,726.40
  6. Step 6: Final answer
    x = 180,381.60

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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.