Home / 100,188.74-138,236.75-59,332.24

Finding the Fourth Proportional to 100,188.74, 138,236.75 and 59,332.24

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Solution

The fourth proportional to 100,188.74, 138,236.75 and 59,332.24 is: 81,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,188.74 : 138,236.75 = 59,332.24 : x
  2. Step 2: Convert to fraction form
    100,188.74/138,236.75 = 59,332.24/x
  3. Step 3: Cross multiply
    100,188.74x = 138,236.75 × 59,332.24
  4. Step 4: Simplify right side
    100,188.74x = 8,201,895,385.57
  5. Step 5: Solve for x
    x = 8,201,895,385.57/100,188.74
  6. Step 6: Final answer
    x = 81,864.44

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1.5x scale

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.