Home / 199,689.50-299,271.72-98,543.18

Finding the Fourth Proportional to 199,689.50, 299,271.72 and 98,543.18

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Solution

The fourth proportional to 199,689.50, 299,271.72 and 98,543.18 is: 147,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,689.50 : 299,271.72 = 98,543.18 : x
  2. Step 2: Convert to fraction form
    199,689.50/299,271.72 = 98,543.18/x
  3. Step 3: Cross multiply
    199,689.50x = 299,271.72 × 98,543.18
  4. Step 4: Simplify right side
    199,689.50x = 29,491,186,972.87
  5. Step 5: Solve for x
    x = 29,491,186,972.87/199,689.50
  6. Step 6: Final answer
    x = 147,685.22

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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.