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Finding the Fourth Proportional to 131,808.67, 197,718.47 and 38,314.42

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Solution

The fourth proportional to 131,808.67, 197,718.47 and 38,314.42 is: 57,473.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,808.67 : 197,718.47 = 38,314.42 : x
  2. Step 2: Convert to fraction form
    131,808.67/197,718.47 = 38,314.42/x
  3. Step 3: Cross multiply
    131,808.67x = 197,718.47 × 38,314.42
  4. Step 4: Simplify right side
    131,808.67x = 7,575,468,501.34
  5. Step 5: Solve for x
    x = 7,575,468,501.34/131,808.67
  6. Step 6: Final answer
    x = 57,473.22

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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.