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Finding the Fourth Proportional to 174,039.40, 260,840.40 and 85,101.40

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Solution

The fourth proportional to 174,039.40, 260,840.40 and 85,101.40 is: 127,545.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,039.40 : 260,840.40 = 85,101.40 : x
  2. Step 2: Convert to fraction form
    174,039.40/260,840.40 = 85,101.40/x
  3. Step 3: Cross multiply
    174,039.40x = 260,840.40 × 85,101.40
  4. Step 4: Simplify right side
    174,039.40x = 22,197,883,216.56
  5. Step 5: Solve for x
    x = 22,197,883,216.56/174,039.40
  6. Step 6: Final answer
    x = 127,545.16

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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.