Home / 111,026.12-153,210.42-68,588.36

Finding the Fourth Proportional to 111,026.12, 153,210.42 and 68,588.36

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Solution

The fourth proportional to 111,026.12, 153,210.42 and 68,588.36 is: 94,648.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,026.12 : 153,210.42 = 68,588.36 : x
  2. Step 2: Convert to fraction form
    111,026.12/153,210.42 = 68,588.36/x
  3. Step 3: Cross multiply
    111,026.12x = 153,210.42 × 68,588.36
  4. Step 4: Simplify right side
    111,026.12x = 10,508,451,442.71
  5. Step 5: Solve for x
    x = 10,508,451,442.71/111,026.12
  6. Step 6: Final answer
    x = 94,648.46

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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.