Home / 102,315.32-141,216.91-68,761.88

Finding the Fourth Proportional to 102,315.32, 141,216.91 and 68,761.88

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Solution

The fourth proportional to 102,315.32, 141,216.91 and 68,761.88 is: 94,906.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,315.32 : 141,216.91 = 68,761.88 : x
  2. Step 2: Convert to fraction form
    102,315.32/141,216.91 = 68,761.88/x
  3. Step 3: Cross multiply
    102,315.32x = 141,216.91 × 68,761.88
  4. Step 4: Simplify right side
    102,315.32x = 9,710,340,219.39
  5. Step 5: Solve for x
    x = 9,710,340,219.39/102,315.32
  6. Step 6: Final answer
    x = 94,906.02

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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.