Home / 124,929.28-172,464.96-84,855.04

Finding the Fourth Proportional to 124,929.28, 172,464.96 and 84,855.04

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Solution

The fourth proportional to 124,929.28, 172,464.96 and 84,855.04 is: 117,142.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,929.28 : 172,464.96 = 84,855.04 : x
  2. Step 2: Convert to fraction form
    124,929.28/172,464.96 = 84,855.04/x
  3. Step 3: Cross multiply
    124,929.28x = 172,464.96 × 84,855.04
  4. Step 4: Simplify right side
    124,929.28x = 14,634,521,079.40
  5. Step 5: Solve for x
    x = 14,634,521,079.40/124,929.28
  6. Step 6: Final answer
    x = 117,142.44

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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.