Home / 120,084.16-180,125.96-112,776.84

Finding the Fourth Proportional to 120,084.16, 180,125.96 and 112,776.84

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Solution

The fourth proportional to 120,084.16, 180,125.96 and 112,776.84 is: 169,165.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,084.16 : 180,125.96 = 112,776.84 : x
  2. Step 2: Convert to fraction form
    120,084.16/180,125.96 = 112,776.84/x
  3. Step 3: Cross multiply
    120,084.16x = 180,125.96 × 112,776.84
  4. Step 4: Simplify right side
    120,084.16x = 20,314,036,570.77
  5. Step 5: Solve for x
    x = 20,314,036,570.77/120,084.16
  6. Step 6: Final answer
    x = 169,165.00

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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.