Home / 142,806.94-197,073.57-79,154.30

Finding the Fourth Proportional to 142,806.94, 197,073.57 and 79,154.30

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Solution

The fourth proportional to 142,806.94, 197,073.57 and 79,154.30 is: 109,232.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,806.94 : 197,073.57 = 79,154.30 : x
  2. Step 2: Convert to fraction form
    142,806.94/197,073.57 = 79,154.30/x
  3. Step 3: Cross multiply
    142,806.94x = 197,073.57 × 79,154.30
  4. Step 4: Simplify right side
    142,806.94x = 15,599,221,271.36
  5. Step 5: Solve for x
    x = 15,599,221,271.36/142,806.94
  6. Step 6: Final answer
    x = 109,232.94

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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.