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Finding the Fourth Proportional to 147,088.80, 202,982.40 and 80,020.80

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Solution

The fourth proportional to 147,088.80, 202,982.40 and 80,020.80 is: 110,428.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,088.80 : 202,982.40 = 80,020.80 : x
  2. Step 2: Convert to fraction form
    147,088.80/202,982.40 = 80,020.80/x
  3. Step 3: Cross multiply
    147,088.80x = 202,982.40 × 80,020.80
  4. Step 4: Simplify right side
    147,088.80x = 16,242,814,033.92
  5. Step 5: Solve for x
    x = 16,242,814,033.92/147,088.80
  6. Step 6: Final answer
    x = 110,428.63

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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.