Home / 86,588.04-129,882.06-70,841.64

Finding the Fourth Proportional to 86,588.04, 129,882.06 and 70,841.64

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Solution

The fourth proportional to 86,588.04, 129,882.06 and 70,841.64 is: 106,262.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,588.04 : 129,882.06 = 70,841.64 : x
  2. Step 2: Convert to fraction form
    86,588.04/129,882.06 = 70,841.64/x
  3. Step 3: Cross multiply
    86,588.04x = 129,882.06 × 70,841.64
  4. Step 4: Simplify right side
    86,588.04x = 9,201,058,136.98
  5. Step 5: Solve for x
    x = 9,201,058,136.98/86,588.04
  6. Step 6: Final answer
    x = 106,262.46

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Similar ratio
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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.