Home / 134,641.40-185,794.21-78,056.42

Finding the Fourth Proportional to 134,641.40, 185,794.21 and 78,056.42

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Solution

The fourth proportional to 134,641.40, 185,794.21 and 78,056.42 is: 107,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,641.40 : 185,794.21 = 78,056.42 : x
  2. Step 2: Convert to fraction form
    134,641.40/185,794.21 = 78,056.42/x
  3. Step 3: Cross multiply
    134,641.40x = 185,794.21 × 78,056.42
  4. Step 4: Simplify right side
    134,641.40x = 14,502,431,451.38
  5. Step 5: Solve for x
    x = 14,502,431,451.38/134,641.40
  6. Step 6: Final answer
    x = 107,711.53

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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.