Home / 109,007.04-150,428.32-61,268.40

Finding the Fourth Proportional to 109,007.04, 150,428.32 and 61,268.40

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Solution

The fourth proportional to 109,007.04, 150,428.32 and 61,268.40 is: 84,549.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,007.04 : 150,428.32 = 61,268.40 : x
  2. Step 2: Convert to fraction form
    109,007.04/150,428.32 = 61,268.40/x
  3. Step 3: Cross multiply
    109,007.04x = 150,428.32 × 61,268.40
  4. Step 4: Simplify right side
    109,007.04x = 9,216,502,481.09
  5. Step 5: Solve for x
    x = 9,216,502,481.09/109,007.04
  6. Step 6: Final answer
    x = 84,549.61

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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.