Home / 107,026.12-147,712.98-81,491.32

Finding the Fourth Proportional to 107,026.12, 147,712.98 and 81,491.32

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Solution

The fourth proportional to 107,026.12, 147,712.98 and 81,491.32 is: 112,470.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,026.12 : 147,712.98 = 81,491.32 : x
  2. Step 2: Convert to fraction form
    107,026.12/147,712.98 = 81,491.32/x
  3. Step 3: Cross multiply
    107,026.12x = 147,712.98 × 81,491.32
  4. Step 4: Simplify right side
    107,026.12x = 12,037,325,721.33
  5. Step 5: Solve for x
    x = 12,037,325,721.33/107,026.12
  6. Step 6: Final answer
    x = 112,470.92

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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.