Home / 166,312.54-229,510.80-90,861.58

Finding the Fourth Proportional to 166,312.54, 229,510.80 and 90,861.58

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Solution

The fourth proportional to 166,312.54, 229,510.80 and 90,861.58 is: 125,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,312.54 : 229,510.80 = 90,861.58 : x
  2. Step 2: Convert to fraction form
    166,312.54/229,510.80 = 90,861.58/x
  3. Step 3: Cross multiply
    166,312.54x = 229,510.80 × 90,861.58
  4. Step 4: Simplify right side
    166,312.54x = 20,853,713,915.06
  5. Step 5: Solve for x
    x = 20,853,713,915.06/166,312.54
  6. Step 6: Final answer
    x = 125,388.70

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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.