Home / 131,398.07-181,329.51-74,809.44

Finding the Fourth Proportional to 131,398.07, 181,329.51 and 74,809.44

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Solution

The fourth proportional to 131,398.07, 181,329.51 and 74,809.44 is: 103,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,398.07 : 181,329.51 = 74,809.44 : x
  2. Step 2: Convert to fraction form
    131,398.07/181,329.51 = 74,809.44/x
  3. Step 3: Cross multiply
    131,398.07x = 181,329.51 × 74,809.44
  4. Step 4: Simplify right side
    131,398.07x = 13,565,159,098.57
  5. Step 5: Solve for x
    x = 13,565,159,098.57/131,398.07
  6. Step 6: Final answer
    x = 103,237.13

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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.