Home / 124,743.32-172,145.77-68,155.10

Finding the Fourth Proportional to 124,743.32, 172,145.77 and 68,155.10

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Solution

The fourth proportional to 124,743.32, 172,145.77 and 68,155.10 is: 94,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,743.32 : 172,145.77 = 68,155.10 : x
  2. Step 2: Convert to fraction form
    124,743.32/172,145.77 = 68,155.10/x
  3. Step 3: Cross multiply
    124,743.32x = 172,145.77 × 68,155.10
  4. Step 4: Simplify right side
    124,743.32x = 11,732,611,308.20
  5. Step 5: Solve for x
    x = 11,732,611,308.20/124,743.32
  6. Step 6: Final answer
    x = 94,054.03

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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.