Home / 161,637.72-242,515.02-82,789.08

Finding the Fourth Proportional to 161,637.72, 242,515.02 and 82,789.08

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Solution

The fourth proportional to 161,637.72, 242,515.02 and 82,789.08 is: 124,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,637.72 : 242,515.02 = 82,789.08 : x
  2. Step 2: Convert to fraction form
    161,637.72/242,515.02 = 82,789.08/x
  3. Step 3: Cross multiply
    161,637.72x = 242,515.02 × 82,789.08
  4. Step 4: Simplify right side
    161,637.72x = 20,077,595,391.98
  5. Step 5: Solve for x
    x = 20,077,595,391.98/161,637.72
  6. Step 6: Final answer
    x = 124,213.55

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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.