Home / 113,853.56-157,151.28-66,128.36

Finding the Fourth Proportional to 113,853.56, 157,151.28 and 66,128.36

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Solution

The fourth proportional to 113,853.56, 157,151.28 and 66,128.36 is: 91,276.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,853.56 : 157,151.28 = 66,128.36 : x
  2. Step 2: Convert to fraction form
    113,853.56/157,151.28 = 66,128.36/x
  3. Step 3: Cross multiply
    113,853.56x = 157,151.28 × 66,128.36
  4. Step 4: Simplify right side
    113,853.56x = 10,392,156,418.30
  5. Step 5: Solve for x
    x = 10,392,156,418.30/113,853.56
  6. Step 6: Final answer
    x = 91,276.52

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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.