Home / 156,959.55-235,439.33-78,227.55

Finding the Fourth Proportional to 156,959.55, 235,439.33 and 78,227.55

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Solution

The fourth proportional to 156,959.55, 235,439.33 and 78,227.55 is: 117,341.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959.55 : 235,439.33 = 78,227.55 : x
  2. Step 2: Convert to fraction form
    156,959.55/235,439.33 = 78,227.55/x
  3. Step 3: Cross multiply
    156,959.55x = 235,439.33 × 78,227.55
  4. Step 4: Simplify right side
    156,959.55x = 18,417,841,568.40
  5. Step 5: Solve for x
    x = 18,417,841,568.40/156,959.55
  6. Step 6: Final answer
    x = 117,341.33

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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.