Home / 126,980.32-175,233.36-70,392.64

Finding the Fourth Proportional to 126,980.32, 175,233.36 and 70,392.64

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Solution

The fourth proportional to 126,980.32, 175,233.36 and 70,392.64 is: 97,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,980.32 : 175,233.36 = 70,392.64 : x
  2. Step 2: Convert to fraction form
    126,980.32/175,233.36 = 70,392.64/x
  3. Step 3: Cross multiply
    126,980.32x = 175,233.36 × 70,392.64
  4. Step 4: Simplify right side
    126,980.32x = 12,335,138,826.47
  5. Step 5: Solve for x
    x = 12,335,138,826.47/126,980.32
  6. Step 6: Final answer
    x = 97,142.13

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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.