Home / 109,547.74-151,135.37-80,936.31

Finding the Fourth Proportional to 109,547.74, 151,135.37 and 80,936.31

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Solution

The fourth proportional to 109,547.74, 151,135.37 and 80,936.31 is: 111,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,547.74 : 151,135.37 = 80,936.31 : x
  2. Step 2: Convert to fraction form
    109,547.74/151,135.37 = 80,936.31/x
  3. Step 3: Cross multiply
    109,547.74x = 151,135.37 × 80,936.31
  4. Step 4: Simplify right side
    109,547.74x = 12,232,339,623.87
  5. Step 5: Solve for x
    x = 12,232,339,623.87/109,547.74
  6. Step 6: Final answer
    x = 111,662.18

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1.5x scale

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.