Home / 102,642.77-153,968.40-35,221.15

Finding the Fourth Proportional to 102,642.77, 153,968.40 and 35,221.15

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Solution

The fourth proportional to 102,642.77, 153,968.40 and 35,221.15 is: 52,833.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,642.77 : 153,968.40 = 35,221.15 : x
  2. Step 2: Convert to fraction form
    102,642.77/153,968.40 = 35,221.15/x
  3. Step 3: Cross multiply
    102,642.77x = 153,968.40 × 35,221.15
  4. Step 4: Simplify right side
    102,642.77x = 5,422,944,111.66
  5. Step 5: Solve for x
    x = 5,422,944,111.66/102,642.77
  6. Step 6: Final answer
    x = 52,833.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.