Home / 88,721.70-133,082.55-79,973.70

Finding the Fourth Proportional to 88,721.70, 133,082.55 and 79,973.70

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Solution

The fourth proportional to 88,721.70, 133,082.55 and 79,973.70 is: 119,960.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,721.70 : 133,082.55 = 79,973.70 : x
  2. Step 2: Convert to fraction form
    88,721.70/133,082.55 = 79,973.70/x
  3. Step 3: Cross multiply
    88,721.70x = 133,082.55 × 79,973.70
  4. Step 4: Simplify right side
    88,721.70x = 10,643,103,928.94
  5. Step 5: Solve for x
    x = 10,643,103,928.94/88,721.70
  6. Step 6: Final answer
    x = 119,960.55

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1.5x scale

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.