Home / 138,719.32-191,432.77-96,302.45

Finding the Fourth Proportional to 138,719.32, 191,432.77 and 96,302.45

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Solution

The fourth proportional to 138,719.32, 191,432.77 and 96,302.45 is: 132,897.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,719.32 : 191,432.77 = 96,302.45 : x
  2. Step 2: Convert to fraction form
    138,719.32/191,432.77 = 96,302.45/x
  3. Step 3: Cross multiply
    138,719.32x = 191,432.77 × 96,302.45
  4. Step 4: Simplify right side
    138,719.32x = 18,435,444,999.11
  5. Step 5: Solve for x
    x = 18,435,444,999.11/138,719.32
  6. Step 6: Final answer
    x = 132,897.46

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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.