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Finding the Fourth Proportional to 144,032.69, 198,765.13 and 79,501.95

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Solution

The fourth proportional to 144,032.69, 198,765.13 and 79,501.95 is: 109,712.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,032.69 : 198,765.13 = 79,501.95 : x
  2. Step 2: Convert to fraction form
    144,032.69/198,765.13 = 79,501.95/x
  3. Step 3: Cross multiply
    144,032.69x = 198,765.13 × 79,501.95
  4. Step 4: Simplify right side
    144,032.69x = 15,802,214,383.50
  5. Step 5: Solve for x
    x = 15,802,214,383.50/144,032.69
  6. Step 6: Final answer
    x = 109,712.70

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1.5x scale

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.