Home / 166,839.86-230,239.10-91,389.62

Finding the Fourth Proportional to 166,839.86, 230,239.10 and 91,389.62

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Solution

The fourth proportional to 166,839.86, 230,239.10 and 91,389.62 is: 126,117.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,839.86 : 230,239.10 = 91,389.62 : x
  2. Step 2: Convert to fraction form
    166,839.86/230,239.10 = 91,389.62/x
  3. Step 3: Cross multiply
    166,839.86x = 230,239.10 × 91,389.62
  4. Step 4: Simplify right side
    166,839.86x = 21,041,462,478.47
  5. Step 5: Solve for x
    x = 21,041,462,478.47/166,839.86
  6. Step 6: Final answer
    x = 126,117.72

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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.