Home / 153,247.61-211,478.39-88,719.58

Finding the Fourth Proportional to 153,247.61, 211,478.39 and 88,719.58

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Solution

The fourth proportional to 153,247.61, 211,478.39 and 88,719.58 is: 122,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,247.61 : 211,478.39 = 88,719.58 : x
  2. Step 2: Convert to fraction form
    153,247.61/211,478.39 = 88,719.58/x
  3. Step 3: Cross multiply
    153,247.61x = 211,478.39 × 88,719.58
  4. Step 4: Simplify right side
    153,247.61x = 18,762,274,391.85
  5. Step 5: Solve for x
    x = 18,762,274,391.85/153,247.61
  6. Step 6: Final answer
    x = 122,431.11

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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.