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Finding the Fourth Proportional to 144,060.16, 198,813 and 80,410.40

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Solution

The fourth proportional to 144,060.16, 198,813 and 80,410.40 is: 110,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,060.16 : 198,813 = 80,410.40 : x
  2. Step 2: Convert to fraction form
    144,060.16/198,813 = 80,410.40/x
  3. Step 3: Cross multiply
    144,060.16x = 198,813 × 80,410.40
  4. Step 4: Simplify right side
    144,060.16x = 15,986,632,855.20
  5. Step 5: Solve for x
    x = 15,986,632,855.20/144,060.16
  6. Step 6: Final answer
    x = 110,971.92

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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.