Home / 158,528.80-218,767.26-86,909.41

Finding the Fourth Proportional to 158,528.80, 218,767.26 and 86,909.41

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Solution

The fourth proportional to 158,528.80, 218,767.26 and 86,909.41 is: 119,933.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,528.80 : 218,767.26 = 86,909.41 : x
  2. Step 2: Convert to fraction form
    158,528.80/218,767.26 = 86,909.41/x
  3. Step 3: Cross multiply
    158,528.80x = 218,767.26 × 86,909.41
  4. Step 4: Simplify right side
    158,528.80x = 19,012,933,493.92
  5. Step 5: Solve for x
    x = 19,012,933,493.92/158,528.80
  6. Step 6: Final answer
    x = 119,933.62

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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.