Home / 218,620.13-301,717.29-127,970.60

Finding the Fourth Proportional to 218,620.13, 301,717.29 and 127,970.60

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Solution

The fourth proportional to 218,620.13, 301,717.29 and 127,970.60 is: 176,612.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,620.13 : 301,717.29 = 127,970.60 : x
  2. Step 2: Convert to fraction form
    218,620.13/301,717.29 = 127,970.60/x
  3. Step 3: Cross multiply
    218,620.13x = 301,717.29 × 127,970.60
  4. Step 4: Simplify right side
    218,620.13x = 38,610,942,631.67
  5. Step 5: Solve for x
    x = 38,610,942,631.67/218,620.13
  6. Step 6: Final answer
    x = 176,612.02

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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.