Home / 174,025.60-261,038.40-90,908.80

Finding the Fourth Proportional to 174,025.60, 261,038.40 and 90,908.80

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Solution

The fourth proportional to 174,025.60, 261,038.40 and 90,908.80 is: 136,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,025.60 : 261,038.40 = 90,908.80 : x
  2. Step 2: Convert to fraction form
    174,025.60/261,038.40 = 90,908.80/x
  3. Step 3: Cross multiply
    174,025.60x = 261,038.40 × 90,908.80
  4. Step 4: Simplify right side
    174,025.60x = 23,730,687,697.92
  5. Step 5: Solve for x
    x = 23,730,687,697.92/174,025.60
  6. Step 6: Final answer
    x = 136,363.20

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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.