Home / 210,149.60-315,244.20-83,759.36

Finding the Fourth Proportional to 210,149.60, 315,244.20 and 83,759.36

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Solution

The fourth proportional to 210,149.60, 315,244.20 and 83,759.36 is: 125,646.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,149.60 : 315,244.20 = 83,759.36 : x
  2. Step 2: Convert to fraction form
    210,149.60/315,244.20 = 83,759.36/x
  3. Step 3: Cross multiply
    210,149.60x = 315,244.20 × 83,759.36
  4. Step 4: Simplify right side
    210,149.60x = 26,404,652,435.71
  5. Step 5: Solve for x
    x = 26,404,652,435.71/210,149.60
  6. Step 6: Final answer
    x = 125,646.93

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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.