Home / 139,260.04-192,158.58-79,632.52

Finding the Fourth Proportional to 139,260.04, 192,158.58 and 79,632.52

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Solution

The fourth proportional to 139,260.04, 192,158.58 and 79,632.52 is: 109,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,260.04 : 192,158.58 = 79,632.52 : x
  2. Step 2: Convert to fraction form
    139,260.04/192,158.58 = 79,632.52/x
  3. Step 3: Cross multiply
    139,260.04x = 192,158.58 × 79,632.52
  4. Step 4: Simplify right side
    139,260.04x = 15,302,071,965.02
  5. Step 5: Solve for x
    x = 15,302,071,965.02/139,260.04
  6. Step 6: Final answer
    x = 109,881.28

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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.