Home / 113,979.32-157,207.36-101,074.20

Finding the Fourth Proportional to 113,979.32, 157,207.36 and 101,074.20

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Solution

The fourth proportional to 113,979.32, 157,207.36 and 101,074.20 is: 139,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,979.32 : 157,207.36 = 101,074.20 : x
  2. Step 2: Convert to fraction form
    113,979.32/157,207.36 = 101,074.20/x
  3. Step 3: Cross multiply
    113,979.32x = 157,207.36 × 101,074.20
  4. Step 4: Simplify right side
    113,979.32x = 15,889,608,146.11
  5. Step 5: Solve for x
    x = 15,889,608,146.11/113,979.32
  6. Step 6: Final answer
    x = 139,407.82

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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.