Home / 166,690.76-230,031.47-90,208.19

Finding the Fourth Proportional to 166,690.76, 230,031.47 and 90,208.19

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Solution

The fourth proportional to 166,690.76, 230,031.47 and 90,208.19 is: 124,486.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,690.76 : 230,031.47 = 90,208.19 : x
  2. Step 2: Convert to fraction form
    166,690.76/230,031.47 = 90,208.19/x
  3. Step 3: Cross multiply
    166,690.76x = 230,031.47 × 90,208.19
  4. Step 4: Simplify right side
    166,690.76x = 20,750,720,950.54
  5. Step 5: Solve for x
    x = 20,750,720,950.54/166,690.76
  6. Step 6: Final answer
    x = 124,486.33

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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.