Home / 140,695.12-194,159.28-77,036.86

Finding the Fourth Proportional to 140,695.12, 194,159.28 and 77,036.86

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Solution

The fourth proportional to 140,695.12, 194,159.28 and 77,036.86 is: 106,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,695.12 : 194,159.28 = 77,036.86 : x
  2. Step 2: Convert to fraction form
    140,695.12/194,159.28 = 77,036.86/x
  3. Step 3: Cross multiply
    140,695.12x = 194,159.28 × 77,036.86
  4. Step 4: Simplify right side
    140,695.12x = 14,957,421,271.06
  5. Step 5: Solve for x
    x = 14,957,421,271.06/140,695.12
  6. Step 6: Final answer
    x = 106,310.87

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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.