Home / 147,290.60-203,284.11-86,867.89

Finding the Fourth Proportional to 147,290.60, 203,284.11 and 86,867.89

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Solution

The fourth proportional to 147,290.60, 203,284.11 and 86,867.89 is: 119,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,290.60 : 203,284.11 = 86,867.89 : x
  2. Step 2: Convert to fraction form
    147,290.60/203,284.11 = 86,867.89/x
  3. Step 3: Cross multiply
    147,290.60x = 203,284.11 × 86,867.89
  4. Step 4: Simplify right side
    147,290.60x = 17,658,861,706.23
  5. Step 5: Solve for x
    x = 17,658,861,706.23/147,290.60
  6. Step 6: Final answer
    x = 119,891.30

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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.