Home / 121,822.28-168,130.18-68,110.47

Finding the Fourth Proportional to 121,822.28, 168,130.18 and 68,110.47

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Solution

The fourth proportional to 121,822.28, 168,130.18 and 68,110.47 is: 94,001.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,822.28 : 168,130.18 = 68,110.47 : x
  2. Step 2: Convert to fraction form
    121,822.28/168,130.18 = 68,110.47/x
  3. Step 3: Cross multiply
    121,822.28x = 168,130.18 × 68,110.47
  4. Step 4: Simplify right side
    121,822.28x = 11,451,425,666.12
  5. Step 5: Solve for x
    x = 11,451,425,666.12/121,822.28
  6. Step 6: Final answer
    x = 94,001.08

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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.