Home / 115,186.48-158,987.04-75,000.64

Finding the Fourth Proportional to 115,186.48, 158,987.04 and 75,000.64

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Solution

The fourth proportional to 115,186.48, 158,987.04 and 75,000.64 is: 103,520.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,186.48 : 158,987.04 = 75,000.64 : x
  2. Step 2: Convert to fraction form
    115,186.48/158,987.04 = 75,000.64/x
  3. Step 3: Cross multiply
    115,186.48x = 158,987.04 × 75,000.64
  4. Step 4: Simplify right side
    115,186.48x = 11,924,129,751.71
  5. Step 5: Solve for x
    x = 11,924,129,751.71/115,186.48
  6. Step 6: Final answer
    x = 103,520.22

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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.