Home / 111,001.90-166,502.85-100,288.30

Finding the Fourth Proportional to 111,001.90, 166,502.85 and 100,288.30

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Solution

The fourth proportional to 111,001.90, 166,502.85 and 100,288.30 is: 150,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,001.90 : 166,502.85 = 100,288.30 : x
  2. Step 2: Convert to fraction form
    111,001.90/166,502.85 = 100,288.30/x
  3. Step 3: Cross multiply
    111,001.90x = 166,502.85 × 100,288.30
  4. Step 4: Simplify right side
    111,001.90x = 16,698,287,771.66
  5. Step 5: Solve for x
    x = 16,698,287,771.66/111,001.90
  6. Step 6: Final answer
    x = 150,432.45

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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.