Home / 121,526.20-182,289.30-77,008.60

Finding the Fourth Proportional to 121,526.20, 182,289.30 and 77,008.60

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Solution

The fourth proportional to 121,526.20, 182,289.30 and 77,008.60 is: 115,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,526.20 : 182,289.30 = 77,008.60 : x
  2. Step 2: Convert to fraction form
    121,526.20/182,289.30 = 77,008.60/x
  3. Step 3: Cross multiply
    121,526.20x = 182,289.30 × 77,008.60
  4. Step 4: Simplify right side
    121,526.20x = 14,037,843,787.98
  5. Step 5: Solve for x
    x = 14,037,843,787.98/121,526.20
  6. Step 6: Final answer
    x = 115,512.90

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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.