Home / 120,137.18-180,151.09-63,962.87

Finding the Fourth Proportional to 120,137.18, 180,151.09 and 63,962.87

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Solution

The fourth proportional to 120,137.18, 180,151.09 and 63,962.87 is: 95,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,137.18 : 180,151.09 = 63,962.87 : x
  2. Step 2: Convert to fraction form
    120,137.18/180,151.09 = 63,962.87/x
  3. Step 3: Cross multiply
    120,137.18x = 180,151.09 × 63,962.87
  4. Step 4: Simplify right side
    120,137.18x = 11,522,979,689.37
  5. Step 5: Solve for x
    x = 11,522,979,689.37/120,137.18
  6. Step 6: Final answer
    x = 95,915.19

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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.