Home / 140,888.16-194,424.78-77,228.64

Finding the Fourth Proportional to 140,888.16, 194,424.78 and 77,228.64

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Solution

The fourth proportional to 140,888.16, 194,424.78 and 77,228.64 is: 106,575.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,888.16 : 194,424.78 = 77,228.64 : x
  2. Step 2: Convert to fraction form
    140,888.16/194,424.78 = 77,228.64/x
  3. Step 3: Cross multiply
    140,888.16x = 194,424.78 × 77,228.64
  4. Step 4: Simplify right side
    140,888.16x = 15,015,161,341.70
  5. Step 5: Solve for x
    x = 15,015,161,341.70/140,888.16
  6. Step 6: Final answer
    x = 106,575.04

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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.