Home / 121,325.16-181,876.86-102,725.04

Finding the Fourth Proportional to 121,325.16, 181,876.86 and 102,725.04

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Solution

The fourth proportional to 121,325.16, 181,876.86 and 102,725.04 is: 153,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,325.16 : 181,876.86 = 102,725.04 : x
  2. Step 2: Convert to fraction form
    121,325.16/181,876.86 = 102,725.04/x
  3. Step 3: Cross multiply
    121,325.16x = 181,876.86 × 102,725.04
  4. Step 4: Simplify right side
    121,325.16x = 18,683,307,718.57
  5. Step 5: Solve for x
    x = 18,683,307,718.57/121,325.16
  6. Step 6: Final answer
    x = 153,993.68

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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.