Home / 115,487.55-159,421.41-70,180.09

Finding the Fourth Proportional to 115,487.55, 159,421.41 and 70,180.09

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Solution

The fourth proportional to 115,487.55, 159,421.41 and 70,180.09 is: 96,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,487.55 : 159,421.41 = 70,180.09 : x
  2. Step 2: Convert to fraction form
    115,487.55/159,421.41 = 70,180.09/x
  3. Step 3: Cross multiply
    115,487.55x = 159,421.41 × 70,180.09
  4. Step 4: Simplify right side
    115,487.55x = 11,188,207,753.72
  5. Step 5: Solve for x
    x = 11,188,207,753.72/115,487.55
  6. Step 6: Final answer
    x = 96,878.04

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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.