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Finding the Fourth Proportional to 166,689.69, 230,030.01 and 90,207.12

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Solution

The fourth proportional to 166,689.69, 230,030.01 and 90,207.12 is: 124,484.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,689.69 : 230,030.01 = 90,207.12 : x
  2. Step 2: Convert to fraction form
    166,689.69/230,030.01 = 90,207.12/x
  3. Step 3: Cross multiply
    166,689.69x = 230,030.01 × 90,207.12
  4. Step 4: Simplify right side
    166,689.69x = 20,750,344,715.67
  5. Step 5: Solve for x
    x = 20,750,344,715.67/166,689.69
  6. Step 6: Final answer
    x = 124,484.87

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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.