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Finding the Fourth Proportional to 153,040.74, 211,135.74 and 88,498.32

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Solution

The fourth proportional to 153,040.74, 211,135.74 and 88,498.32 is: 122,092.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,040.74 : 211,135.74 = 88,498.32 : x
  2. Step 2: Convert to fraction form
    153,040.74/211,135.74 = 88,498.32/x
  3. Step 3: Cross multiply
    153,040.74x = 211,135.74 × 88,498.32
  4. Step 4: Simplify right side
    153,040.74x = 18,685,158,281.96
  5. Step 5: Solve for x
    x = 18,685,158,281.96/153,040.74
  6. Step 6: Final answer
    x = 122,092.71

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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.