Home / 97,719.60-146,579.40-83,722.80

Finding the Fourth Proportional to 97,719.60, 146,579.40 and 83,722.80

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Solution

The fourth proportional to 97,719.60, 146,579.40 and 83,722.80 is: 125,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,719.60 : 146,579.40 = 83,722.80 : x
  2. Step 2: Convert to fraction form
    97,719.60/146,579.40 = 83,722.80/x
  3. Step 3: Cross multiply
    97,719.60x = 146,579.40 × 83,722.80
  4. Step 4: Simplify right side
    97,719.60x = 12,272,037,790.32
  5. Step 5: Solve for x
    x = 12,272,037,790.32/97,719.60
  6. Step 6: Final answer
    x = 125,584.20

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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.