Home / 140,760.72-210,083.88-121,701.04

Finding the Fourth Proportional to 140,760.72, 210,083.88 and 121,701.04

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Solution

The fourth proportional to 140,760.72, 210,083.88 and 121,701.04 is: 181,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,760.72 : 210,083.88 = 121,701.04 : x
  2. Step 2: Convert to fraction form
    140,760.72/210,083.88 = 121,701.04/x
  3. Step 3: Cross multiply
    140,760.72x = 210,083.88 × 121,701.04
  4. Step 4: Simplify right side
    140,760.72x = 25,567,426,683.24
  5. Step 5: Solve for x
    x = 25,567,426,683.24/140,760.72
  6. Step 6: Final answer
    x = 181,637.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.