Home / 172,938.78-238,634.28-96,439.95

Finding the Fourth Proportional to 172,938.78, 238,634.28 and 96,439.95

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Solution

The fourth proportional to 172,938.78, 238,634.28 and 96,439.95 is: 133,075.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,938.78 : 238,634.28 = 96,439.95 : x
  2. Step 2: Convert to fraction form
    172,938.78/238,634.28 = 96,439.95/x
  3. Step 3: Cross multiply
    172,938.78x = 238,634.28 × 96,439.95
  4. Step 4: Simplify right side
    172,938.78x = 23,013,878,031.49
  5. Step 5: Solve for x
    x = 23,013,878,031.49/172,938.78
  6. Step 6: Final answer
    x = 133,075.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.