Home / 117,947.60-176,921.40-71,291.60

Finding the Fourth Proportional to 117,947.60, 176,921.40 and 71,291.60

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Solution

The fourth proportional to 117,947.60, 176,921.40 and 71,291.60 is: 106,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,947.60 : 176,921.40 = 71,291.60 : x
  2. Step 2: Convert to fraction form
    117,947.60/176,921.40 = 71,291.60/x
  3. Step 3: Cross multiply
    117,947.60x = 176,921.40 × 71,291.60
  4. Step 4: Simplify right side
    117,947.60x = 12,613,009,680.24
  5. Step 5: Solve for x
    x = 12,613,009,680.24/117,947.60
  6. Step 6: Final answer
    x = 106,937.40

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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.