Home / 154,681.25-213,460.14-87,613.25

Finding the Fourth Proportional to 154,681.25, 213,460.14 and 87,613.25

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Solution

The fourth proportional to 154,681.25, 213,460.14 and 87,613.25 is: 120,906.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,681.25 : 213,460.14 = 87,613.25 : x
  2. Step 2: Convert to fraction form
    154,681.25/213,460.14 = 87,613.25/x
  3. Step 3: Cross multiply
    154,681.25x = 213,460.14 × 87,613.25
  4. Step 4: Simplify right side
    154,681.25x = 18,701,936,610.86
  5. Step 5: Solve for x
    x = 18,701,936,610.86/154,681.25
  6. Step 6: Final answer
    x = 120,906.29

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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.