Home / 139,356.04-192,312.36-75,693.88

Finding the Fourth Proportional to 139,356.04, 192,312.36 and 75,693.88

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Solution

The fourth proportional to 139,356.04, 192,312.36 and 75,693.88 is: 104,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,356.04 : 192,312.36 = 75,693.88 : x
  2. Step 2: Convert to fraction form
    139,356.04/192,312.36 = 75,693.88/x
  3. Step 3: Cross multiply
    139,356.04x = 192,312.36 × 75,693.88
  4. Step 4: Simplify right side
    139,356.04x = 14,556,868,700.36
  5. Step 5: Solve for x
    x = 14,556,868,700.36/139,356.04
  6. Step 6: Final answer
    x = 104,458.11

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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.