Home / 121,885.32-182,855.28-43,000.20

Finding the Fourth Proportional to 121,885.32, 182,855.28 and 43,000.20

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Solution

The fourth proportional to 121,885.32, 182,855.28 and 43,000.20 is: 64,509.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,885.32 : 182,855.28 = 43,000.20 : x
  2. Step 2: Convert to fraction form
    121,885.32/182,855.28 = 43,000.20/x
  3. Step 3: Cross multiply
    121,885.32x = 182,855.28 × 43,000.20
  4. Step 4: Simplify right side
    121,885.32x = 7,862,813,611.06
  5. Step 5: Solve for x
    x = 7,862,813,611.06/121,885.32
  6. Step 6: Final answer
    x = 64,509.93

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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.