Home / 166,521.09-229,798.60-90,039.66

Finding the Fourth Proportional to 166,521.09, 229,798.60 and 90,039.66

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Solution

The fourth proportional to 166,521.09, 229,798.60 and 90,039.66 is: 124,254.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,521.09 : 229,798.60 = 90,039.66 : x
  2. Step 2: Convert to fraction form
    166,521.09/229,798.60 = 90,039.66/x
  3. Step 3: Cross multiply
    166,521.09x = 229,798.60 × 90,039.66
  4. Step 4: Simplify right side
    166,521.09x = 20,690,987,812.48
  5. Step 5: Solve for x
    x = 20,690,987,812.48/166,521.09
  6. Step 6: Final answer
    x = 124,254.46

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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.