Home / 145,981.62-201,454.78-85,540.24

Finding the Fourth Proportional to 145,981.62, 201,454.78 and 85,540.24

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Solution

The fourth proportional to 145,981.62, 201,454.78 and 85,540.24 is: 118,045.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,981.62 : 201,454.78 = 85,540.24 : x
  2. Step 2: Convert to fraction form
    145,981.62/201,454.78 = 85,540.24/x
  3. Step 3: Cross multiply
    145,981.62x = 201,454.78 × 85,540.24
  4. Step 4: Simplify right side
    145,981.62x = 17,232,490,230.35
  5. Step 5: Solve for x
    x = 17,232,490,230.35/145,981.62
  6. Step 6: Final answer
    x = 118,045.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.