Home / 161,875.04-242,962.28-81,969.20

Finding the Fourth Proportional to 161,875.04, 242,962.28 and 81,969.20

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Solution

The fourth proportional to 161,875.04, 242,962.28 and 81,969.20 is: 123,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,875.04 : 242,962.28 = 81,969.20 : x
  2. Step 2: Convert to fraction form
    161,875.04/242,962.28 = 81,969.20/x
  3. Step 3: Cross multiply
    161,875.04x = 242,962.28 × 81,969.20
  4. Step 4: Simplify right side
    161,875.04x = 19,915,423,721.78
  5. Step 5: Solve for x
    x = 19,915,423,721.78/161,875.04
  6. Step 6: Final answer
    x = 123,029.61

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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.