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Finding the Fourth Proportional to 143,017.74, 197,400.76 and 97,714.03

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Solution

The fourth proportional to 143,017.74, 197,400.76 and 97,714.03 is: 134,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,017.74 : 197,400.76 = 97,714.03 : x
  2. Step 2: Convert to fraction form
    143,017.74/197,400.76 = 97,714.03/x
  3. Step 3: Cross multiply
    143,017.74x = 197,400.76 × 97,714.03
  4. Step 4: Simplify right side
    143,017.74x = 19,288,823,784.66
  5. Step 5: Solve for x
    x = 19,288,823,784.66/143,017.74
  6. Step 6: Final answer
    x = 134,870.15

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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.