Home / 129,158.75-193,746.33-34,387.40

Finding the Fourth Proportional to 129,158.75, 193,746.33 and 34,387.40

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Solution

The fourth proportional to 129,158.75, 193,746.33 and 34,387.40 is: 51,583.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,158.75 : 193,746.33 = 34,387.40 : x
  2. Step 2: Convert to fraction form
    129,158.75/193,746.33 = 34,387.40/x
  3. Step 3: Cross multiply
    129,158.75x = 193,746.33 × 34,387.40
  4. Step 4: Simplify right side
    129,158.75x = 6,662,431,579.51
  5. Step 5: Solve for x
    x = 6,662,431,579.51/129,158.75
  6. Step 6: Final answer
    x = 51,583.28

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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.