Home / 260,111.70-390,167.55-73,123.20

Finding the Fourth Proportional to 260,111.70, 390,167.55 and 73,123.20

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Solution

The fourth proportional to 260,111.70, 390,167.55 and 73,123.20 is: 109,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,111.70 : 390,167.55 = 73,123.20 : x
  2. Step 2: Convert to fraction form
    260,111.70/390,167.55 = 73,123.20/x
  3. Step 3: Cross multiply
    260,111.70x = 390,167.55 × 73,123.20
  4. Step 4: Simplify right side
    260,111.70x = 28,530,299,792.16
  5. Step 5: Solve for x
    x = 28,530,299,792.16/260,111.70
  6. Step 6: Final answer
    x = 109,684.80

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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.