Home / 120,772.10-180,812.55-74,116.10

Finding the Fourth Proportional to 120,772.10, 180,812.55 and 74,116.10

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Solution

The fourth proportional to 120,772.10, 180,812.55 and 74,116.10 is: 110,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,772.10 : 180,812.55 = 74,116.10 : x
  2. Step 2: Convert to fraction form
    120,772.10/180,812.55 = 74,116.10/x
  3. Step 3: Cross multiply
    120,772.10x = 180,812.55 × 74,116.10
  4. Step 4: Simplify right side
    120,772.10x = 13,401,121,037.06
  5. Step 5: Solve for x
    x = 13,401,121,037.06/120,772.10
  6. Step 6: Final answer
    x = 110,962.06

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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.