Home / 102,192.69-153,312.09-31,121.70

Finding the Fourth Proportional to 102,192.69, 153,312.09 and 31,121.70

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Solution

The fourth proportional to 102,192.69, 153,312.09 and 31,121.70 is: 46,689.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,192.69 : 153,312.09 = 31,121.70 : x
  2. Step 2: Convert to fraction form
    102,192.69/153,312.09 = 31,121.70/x
  3. Step 3: Cross multiply
    102,192.69x = 153,312.09 × 31,121.70
  4. Step 4: Simplify right side
    102,192.69x = 4,771,332,871.35
  5. Step 5: Solve for x
    x = 4,771,332,871.35/102,192.69
  6. Step 6: Final answer
    x = 46,689.57

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