Home / 116,987.15-161,442.25-63,272.16

Finding the Fourth Proportional to 116,987.15, 161,442.25 and 63,272.16

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Solution

The fourth proportional to 116,987.15, 161,442.25 and 63,272.16 is: 87,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,987.15 : 161,442.25 = 63,272.16 : x
  2. Step 2: Convert to fraction form
    116,987.15/161,442.25 = 63,272.16/x
  3. Step 3: Cross multiply
    116,987.15x = 161,442.25 × 63,272.16
  4. Step 4: Simplify right side
    116,987.15x = 10,214,799,872.76
  5. Step 5: Solve for x
    x = 10,214,799,872.76/116,987.15
  6. Step 6: Final answer
    x = 87,315.57

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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.