Home / 166,746-250,043.40-71,931.45

Finding the Fourth Proportional to 166,746, 250,043.40 and 71,931.45

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Solution

The fourth proportional to 166,746, 250,043.40 and 71,931.45 is: 107,864.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,746 : 250,043.40 = 71,931.45 : x
  2. Step 2: Convert to fraction form
    166,746/250,043.40 = 71,931.45/x
  3. Step 3: Cross multiply
    166,746x = 250,043.40 × 71,931.45
  4. Step 4: Simplify right side
    166,746x = 17,985,984,324.93
  5. Step 5: Solve for x
    x = 17,985,984,324.93/166,746
  6. Step 6: Final answer
    x = 107,864.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.