Home / 115,187.48-158,988.42-75,001.64

Finding the Fourth Proportional to 115,187.48, 158,988.42 and 75,001.64

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Solution

The fourth proportional to 115,187.48, 158,988.42 and 75,001.64 is: 103,521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,187.48 : 158,988.42 = 75,001.64 : x
  2. Step 2: Convert to fraction form
    115,187.48/158,988.42 = 75,001.64/x
  3. Step 3: Cross multiply
    115,187.48x = 158,988.42 × 75,001.64
  4. Step 4: Simplify right side
    115,187.48x = 11,924,392,241.01
  5. Step 5: Solve for x
    x = 11,924,392,241.01/115,187.48
  6. Step 6: Final answer
    x = 103,521.60

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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.