Home / 145,656.11-218,073.33-77,112.36

Finding the Fourth Proportional to 145,656.11, 218,073.33 and 77,112.36

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Solution

The fourth proportional to 145,656.11, 218,073.33 and 77,112.36 is: 115,451.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,656.11 : 218,073.33 = 77,112.36 : x
  2. Step 2: Convert to fraction form
    145,656.11/218,073.33 = 77,112.36/x
  3. Step 3: Cross multiply
    145,656.11x = 218,073.33 × 77,112.36
  4. Step 4: Simplify right side
    145,656.11x = 16,816,149,129.36
  5. Step 5: Solve for x
    x = 16,816,149,129.36/145,656.11
  6. Step 6: Final answer
    x = 115,451.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.