Home / 115,710.12-159,626.70-79,950.24

Finding the Fourth Proportional to 115,710.12, 159,626.70 and 79,950.24

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Solution

The fourth proportional to 115,710.12, 159,626.70 and 79,950.24 is: 110,294.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,710.12 : 159,626.70 = 79,950.24 : x
  2. Step 2: Convert to fraction form
    115,710.12/159,626.70 = 79,950.24/x
  3. Step 3: Cross multiply
    115,710.12x = 159,626.70 × 79,950.24
  4. Step 4: Simplify right side
    115,710.12x = 12,762,192,975.41
  5. Step 5: Solve for x
    x = 12,762,192,975.41/115,710.12
  6. Step 6: Final answer
    x = 110,294.53

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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.