Home / 139,521.32-192,538.44-75,859.16

Finding the Fourth Proportional to 139,521.32, 192,538.44 and 75,859.16

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Solution

The fourth proportional to 139,521.32, 192,538.44 and 75,859.16 is: 104,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,521.32 : 192,538.44 = 75,859.16 : x
  2. Step 2: Convert to fraction form
    139,521.32/192,538.44 = 75,859.16/x
  3. Step 3: Cross multiply
    139,521.32x = 192,538.44 × 75,859.16
  4. Step 4: Simplify right side
    139,521.32x = 14,605,804,326.11
  5. Step 5: Solve for x
    x = 14,605,804,326.11/139,521.32
  6. Step 6: Final answer
    x = 104,685.11

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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.