Home / 109,011.84-150,550.56-75,108.48

Finding the Fourth Proportional to 109,011.84, 150,550.56 and 75,108.48

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Solution

The fourth proportional to 109,011.84, 150,550.56 and 75,108.48 is: 103,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,011.84 : 150,550.56 = 75,108.48 : x
  2. Step 2: Convert to fraction form
    109,011.84/150,550.56 = 75,108.48/x
  3. Step 3: Cross multiply
    109,011.84x = 150,550.56 × 75,108.48
  4. Step 4: Simplify right side
    109,011.84x = 11,307,623,724.75
  5. Step 5: Solve for x
    x = 11,307,623,724.75/109,011.84
  6. Step 6: Final answer
    x = 103,728.40

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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.