Home / 100,852.28-139,164.18-58,402.52

Finding the Fourth Proportional to 100,852.28, 139,164.18 and 58,402.52

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Solution

The fourth proportional to 100,852.28, 139,164.18 and 58,402.52 is: 80,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,852.28 : 139,164.18 = 58,402.52 : x
  2. Step 2: Convert to fraction form
    100,852.28/139,164.18 = 58,402.52/x
  3. Step 3: Cross multiply
    100,852.28x = 139,164.18 × 58,402.52
  4. Step 4: Simplify right side
    100,852.28x = 8,127,538,805.73
  5. Step 5: Solve for x
    x = 8,127,538,805.73/100,852.28
  6. Step 6: Final answer
    x = 80,588.55

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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.