Home / 174,003.60-261,005.40-85,430.10

Finding the Fourth Proportional to 174,003.60, 261,005.40 and 85,430.10

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Solution

The fourth proportional to 174,003.60, 261,005.40 and 85,430.10 is: 128,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,003.60 : 261,005.40 = 85,430.10 : x
  2. Step 2: Convert to fraction form
    174,003.60/261,005.40 = 85,430.10/x
  3. Step 3: Cross multiply
    174,003.60x = 261,005.40 × 85,430.10
  4. Step 4: Simplify right side
    174,003.60x = 22,297,717,422.54
  5. Step 5: Solve for x
    x = 22,297,717,422.54/174,003.60
  6. Step 6: Final answer
    x = 128,145.15

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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.