Home / 218,636.04-301,793.22-128,021.13

Finding the Fourth Proportional to 218,636.04, 301,793.22 and 128,021.13

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Solution

The fourth proportional to 218,636.04, 301,793.22 and 128,021.13 is: 176,713.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,636.04 : 301,793.22 = 128,021.13 : x
  2. Step 2: Convert to fraction form
    218,636.04/301,793.22 = 128,021.13/x
  3. Step 3: Cross multiply
    218,636.04x = 301,793.22 × 128,021.13
  4. Step 4: Simplify right side
    218,636.04x = 38,635,909,050.74
  5. Step 5: Solve for x
    x = 38,635,909,050.74/218,636.04
  6. Step 6: Final answer
    x = 176,713.36

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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.