Home / 153,132.31-211,305.67-91,875.25

Finding the Fourth Proportional to 153,132.31, 211,305.67 and 91,875.25

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Solution

The fourth proportional to 153,132.31, 211,305.67 and 91,875.25 is: 126,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,132.31 : 211,305.67 = 91,875.25 : x
  2. Step 2: Convert to fraction form
    153,132.31/211,305.67 = 91,875.25/x
  3. Step 3: Cross multiply
    153,132.31x = 211,305.67 × 91,875.25
  4. Step 4: Simplify right side
    153,132.31x = 19,413,761,257.67
  5. Step 5: Solve for x
    x = 19,413,761,257.67/153,132.31
  6. Step 6: Final answer
    x = 126,777.69

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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.