Home / 127,790.48-176,380.91-79,428.93

Finding the Fourth Proportional to 127,790.48, 176,380.91 and 79,428.93

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Solution

The fourth proportional to 127,790.48, 176,380.91 and 79,428.93 is: 109,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,790.48 : 176,380.91 = 79,428.93 : x
  2. Step 2: Convert to fraction form
    127,790.48/176,380.91 = 79,428.93/x
  3. Step 3: Cross multiply
    127,790.48x = 176,380.91 × 79,428.93
  4. Step 4: Simplify right side
    127,790.48x = 14,009,746,556.58
  5. Step 5: Solve for x
    x = 14,009,746,556.58/127,790.48
  6. Step 6: Final answer
    x = 109,630.60

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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.