Home / 153,077.88-211,247.34-85,092.72

Finding the Fourth Proportional to 153,077.88, 211,247.34 and 85,092.72

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Solution

The fourth proportional to 153,077.88, 211,247.34 and 85,092.72 is: 117,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,077.88 : 211,247.34 = 85,092.72 : x
  2. Step 2: Convert to fraction form
    153,077.88/211,247.34 = 85,092.72/x
  3. Step 3: Cross multiply
    153,077.88x = 211,247.34 × 85,092.72
  4. Step 4: Simplify right side
    153,077.88x = 17,975,610,753.36
  5. Step 5: Solve for x
    x = 17,975,610,753.36/153,077.88
  6. Step 6: Final answer
    x = 117,427.88

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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.