Home / 254,117.04-381,210.68-85,685.52

Finding the Fourth Proportional to 254,117.04, 381,210.68 and 85,685.52

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Solution

The fourth proportional to 254,117.04, 381,210.68 and 85,685.52 is: 128,540.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,117.04 : 381,210.68 = 85,685.52 : x
  2. Step 2: Convert to fraction form
    254,117.04/381,210.68 = 85,685.52/x
  3. Step 3: Cross multiply
    254,117.04x = 381,210.68 × 85,685.52
  4. Step 4: Simplify right side
    254,117.04x = 32,664,234,916.93
  5. Step 5: Solve for x
    x = 32,664,234,916.93/254,117.04
  6. Step 6: Final answer
    x = 128,540.12

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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.