Home / 156,123.20-234,184.80-153,790.40

Finding the Fourth Proportional to 156,123.20, 234,184.80 and 153,790.40

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Solution

The fourth proportional to 156,123.20, 234,184.80 and 153,790.40 is: 230,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,123.20 : 234,184.80 = 153,790.40 : x
  2. Step 2: Convert to fraction form
    156,123.20/234,184.80 = 153,790.40/x
  3. Step 3: Cross multiply
    156,123.20x = 234,184.80 × 153,790.40
  4. Step 4: Simplify right side
    156,123.20x = 36,015,374,065.92
  5. Step 5: Solve for x
    x = 36,015,374,065.92/156,123.20
  6. Step 6: Final answer
    x = 230,685.60

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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.