Home / 139,560.16-192,597.28-79,133.36

Finding the Fourth Proportional to 139,560.16, 192,597.28 and 79,133.36

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Solution

The fourth proportional to 139,560.16, 192,597.28 and 79,133.36 is: 109,206.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,560.16 : 192,597.28 = 79,133.36 : x
  2. Step 2: Convert to fraction form
    139,560.16/192,597.28 = 79,133.36/x
  3. Step 3: Cross multiply
    139,560.16x = 192,597.28 × 79,133.36
  4. Step 4: Simplify right side
    139,560.16x = 15,240,869,893.26
  5. Step 5: Solve for x
    x = 15,240,869,893.26/139,560.16
  6. Step 6: Final answer
    x = 109,206.45

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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.