Home / 113,663.18-156,836.86-68,330.32

Finding the Fourth Proportional to 113,663.18, 156,836.86 and 68,330.32

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Solution

The fourth proportional to 113,663.18, 156,836.86 and 68,330.32 is: 94,284.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,663.18 : 156,836.86 = 68,330.32 : x
  2. Step 2: Convert to fraction form
    113,663.18/156,836.86 = 68,330.32/x
  3. Step 3: Cross multiply
    113,663.18x = 156,836.86 × 68,330.32
  4. Step 4: Simplify right side
    113,663.18x = 10,716,712,268.68
  5. Step 5: Solve for x
    x = 10,716,712,268.68/113,663.18
  6. Step 6: Final answer
    x = 94,284.82

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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.