Home / 142,923.60-214,316.28-83,778.48

Finding the Fourth Proportional to 142,923.60, 214,316.28 and 83,778.48

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Solution

The fourth proportional to 142,923.60, 214,316.28 and 83,778.48 is: 125,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,923.60 : 214,316.28 = 83,778.48 : x
  2. Step 2: Convert to fraction form
    142,923.60/214,316.28 = 83,778.48/x
  3. Step 3: Cross multiply
    142,923.60x = 214,316.28 × 83,778.48
  4. Step 4: Simplify right side
    142,923.60x = 17,955,092,177.65
  5. Step 5: Solve for x
    x = 17,955,092,177.65/142,923.60
  6. Step 6: Final answer
    x = 125,627.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.