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Finding the Fourth Proportional to 168,778.80, 253,127.70 and 97,547.40

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Solution

The fourth proportional to 168,778.80, 253,127.70 and 97,547.40 is: 146,297.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,778.80 : 253,127.70 = 97,547.40 : x
  2. Step 2: Convert to fraction form
    168,778.80/253,127.70 = 97,547.40/x
  3. Step 3: Cross multiply
    168,778.80x = 253,127.70 × 97,547.40
  4. Step 4: Simplify right side
    168,778.80x = 24,691,949,002.98
  5. Step 5: Solve for x
    x = 24,691,949,002.98/168,778.80
  6. Step 6: Final answer
    x = 146,297.69

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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.