Home / 79,206.24-118,514.06-78,320.46

Finding the Fourth Proportional to 79,206.24, 118,514.06 and 78,320.46

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Solution

The fourth proportional to 79,206.24, 118,514.06 and 78,320.46 is: 117,188.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,206.24 : 118,514.06 = 78,320.46 : x
  2. Step 2: Convert to fraction form
    79,206.24/118,514.06 = 78,320.46/x
  3. Step 3: Cross multiply
    79,206.24x = 118,514.06 × 78,320.46
  4. Step 4: Simplify right side
    79,206.24x = 9,282,075,695.67
  5. Step 5: Solve for x
    x = 9,282,075,695.67/79,206.24
  6. Step 6: Final answer
    x = 117,188.69

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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.