Home / 158,244.60-218,376.09-86,624.40

Finding the Fourth Proportional to 158,244.60, 218,376.09 and 86,624.40

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Solution

The fourth proportional to 158,244.60, 218,376.09 and 86,624.40 is: 119,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,244.60 : 218,376.09 = 86,624.40 : x
  2. Step 2: Convert to fraction form
    158,244.60/218,376.09 = 86,624.40/x
  3. Step 3: Cross multiply
    158,244.60x = 218,376.09 × 86,624.40
  4. Step 4: Simplify right side
    158,244.60x = 18,916,697,770.60
  5. Step 5: Solve for x
    x = 18,916,697,770.60/158,244.60
  6. Step 6: Final answer
    x = 119,540.87

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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.