Home / 158,046.05-218,103.64-86,432.74

Finding the Fourth Proportional to 158,046.05, 218,103.64 and 86,432.74

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Solution

The fourth proportional to 158,046.05, 218,103.64 and 86,432.74 is: 119,277.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,046.05 : 218,103.64 = 86,432.74 : x
  2. Step 2: Convert to fraction form
    158,046.05/218,103.64 = 86,432.74/x
  3. Step 3: Cross multiply
    158,046.05x = 218,103.64 × 86,432.74
  4. Step 4: Simplify right side
    158,046.05x = 18,851,294,447.83
  5. Step 5: Solve for x
    x = 18,851,294,447.83/158,046.05
  6. Step 6: Final answer
    x = 119,277.22

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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.