Home / 121,196.73-181,680.07-42,289.77

Finding the Fourth Proportional to 121,196.73, 181,680.07 and 42,289.77

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Solution

The fourth proportional to 121,196.73, 181,680.07 and 42,289.77 is: 63,394.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,196.73 : 181,680.07 = 42,289.77 : x
  2. Step 2: Convert to fraction form
    121,196.73/181,680.07 = 42,289.77/x
  3. Step 3: Cross multiply
    121,196.73x = 181,680.07 × 42,289.77
  4. Step 4: Simplify right side
    121,196.73x = 7,683,208,373.88
  5. Step 5: Solve for x
    x = 7,683,208,373.88/121,196.73
  6. Step 6: Final answer
    x = 63,394.52

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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.