Home / 86,147.06-129,308.06-61,215.26

Finding the Fourth Proportional to 86,147.06, 129,308.06 and 61,215.26

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Solution

The fourth proportional to 86,147.06, 129,308.06 and 61,215.26 is: 91,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,147.06 : 129,308.06 = 61,215.26 : x
  2. Step 2: Convert to fraction form
    86,147.06/129,308.06 = 61,215.26/x
  3. Step 3: Cross multiply
    86,147.06x = 129,308.06 × 61,215.26
  4. Step 4: Simplify right side
    86,147.06x = 7,915,626,019.49
  5. Step 5: Solve for x
    x = 7,915,626,019.49/86,147.06
  6. Step 6: Final answer
    x = 91,885.04

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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.