Home / 156,870.40-235,305.60-38,540.20

Finding the Fourth Proportional to 156,870.40, 235,305.60 and 38,540.20

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Solution

The fourth proportional to 156,870.40, 235,305.60 and 38,540.20 is: 57,810.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,870.40 : 235,305.60 = 38,540.20 : x
  2. Step 2: Convert to fraction form
    156,870.40/235,305.60 = 38,540.20/x
  3. Step 3: Cross multiply
    156,870.40x = 235,305.60 × 38,540.20
  4. Step 4: Simplify right side
    156,870.40x = 9,068,724,885.12
  5. Step 5: Solve for x
    x = 9,068,724,885.12/156,870.40
  6. Step 6: Final answer
    x = 57,810.30

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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.