Home / 120,589.16-180,885.26-45,689.18

Finding the Fourth Proportional to 120,589.16, 180,885.26 and 45,689.18

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Solution

The fourth proportional to 120,589.16, 180,885.26 and 45,689.18 is: 68,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,589.16 : 180,885.26 = 45,689.18 : x
  2. Step 2: Convert to fraction form
    120,589.16/180,885.26 = 45,689.18/x
  3. Step 3: Cross multiply
    120,589.16x = 180,885.26 × 45,689.18
  4. Step 4: Simplify right side
    120,589.16x = 8,264,498,975.04
  5. Step 5: Solve for x
    x = 8,264,498,975.04/120,589.16
  6. Step 6: Final answer
    x = 68,534.35

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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.