Home / 122,637.44-169,285.90-71,666.72

Finding the Fourth Proportional to 122,637.44, 169,285.90 and 71,666.72

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Solution

The fourth proportional to 122,637.44, 169,285.90 and 71,666.72 is: 98,927.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,637.44 : 169,285.90 = 71,666.72 : x
  2. Step 2: Convert to fraction form
    122,637.44/169,285.90 = 71,666.72/x
  3. Step 3: Cross multiply
    122,637.44x = 169,285.90 × 71,666.72
  4. Step 4: Simplify right side
    122,637.44x = 12,132,165,195.25
  5. Step 5: Solve for x
    x = 12,132,165,195.25/122,637.44
  6. Step 6: Final answer
    x = 98,927.09

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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.