Home / 166,617.90-229,931.66-90,136.69

Finding the Fourth Proportional to 166,617.90, 229,931.66 and 90,136.69

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Solution

The fourth proportional to 166,617.90, 229,931.66 and 90,136.69 is: 124,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,617.90 : 229,931.66 = 90,136.69 : x
  2. Step 2: Convert to fraction form
    166,617.90/229,931.66 = 90,136.69/x
  3. Step 3: Cross multiply
    166,617.90x = 229,931.66 × 90,136.69
  4. Step 4: Simplify right side
    166,617.90x = 20,725,278,409.12
  5. Step 5: Solve for x
    x = 20,725,278,409.12/166,617.90
  6. Step 6: Final answer
    x = 124,388.07

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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.