Home / 126,138.72-174,071.28-69,550.20

Finding the Fourth Proportional to 126,138.72, 174,071.28 and 69,550.20

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Solution

The fourth proportional to 126,138.72, 174,071.28 and 69,550.20 is: 95,979.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,138.72 : 174,071.28 = 69,550.20 : x
  2. Step 2: Convert to fraction form
    126,138.72/174,071.28 = 69,550.20/x
  3. Step 3: Cross multiply
    126,138.72x = 174,071.28 × 69,550.20
  4. Step 4: Simplify right side
    126,138.72x = 12,106,692,338.26
  5. Step 5: Solve for x
    x = 12,106,692,338.26/126,138.72
  6. Step 6: Final answer
    x = 95,979.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.