Home / 199,915.62-299,725.29-121,011.18

Finding the Fourth Proportional to 199,915.62, 299,725.29 and 121,011.18

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Solution

The fourth proportional to 199,915.62, 299,725.29 and 121,011.18 is: 181,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,915.62 : 299,725.29 = 121,011.18 : x
  2. Step 2: Convert to fraction form
    199,915.62/299,725.29 = 121,011.18/x
  3. Step 3: Cross multiply
    199,915.62x = 299,725.29 × 121,011.18
  4. Step 4: Simplify right side
    199,915.62x = 36,270,111,018.74
  5. Step 5: Solve for x
    x = 36,270,111,018.74/199,915.62
  6. Step 6: Final answer
    x = 181,427.10

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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.