Home / 218,120.80-301,001.52-142,667.68

Finding the Fourth Proportional to 218,120.80, 301,001.52 and 142,667.68

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Solution

The fourth proportional to 218,120.80, 301,001.52 and 142,667.68 is: 196,878.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,120.80 : 301,001.52 = 142,667.68 : x
  2. Step 2: Convert to fraction form
    218,120.80/301,001.52 = 142,667.68/x
  3. Step 3: Cross multiply
    218,120.80x = 301,001.52 × 142,667.68
  4. Step 4: Simplify right side
    218,120.80x = 42,943,188,534.87
  5. Step 5: Solve for x
    x = 42,943,188,534.87/218,120.80
  6. Step 6: Final answer
    x = 196,878.01

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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.