Home / 86,966.31-120,255.09-69,030.18

Finding the Fourth Proportional to 86,966.31, 120,255.09 and 69,030.18

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Solution

The fourth proportional to 86,966.31, 120,255.09 and 69,030.18 is: 95,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,966.31 : 120,255.09 = 69,030.18 : x
  2. Step 2: Convert to fraction form
    86,966.31/120,255.09 = 69,030.18/x
  3. Step 3: Cross multiply
    86,966.31x = 120,255.09 × 69,030.18
  4. Step 4: Simplify right side
    86,966.31x = 8,301,230,508.62
  5. Step 5: Solve for x
    x = 8,301,230,508.62/86,966.31
  6. Step 6: Final answer
    x = 95,453.41

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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.