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Finding the Fourth Proportional to 115,797.84, 159,808.07 and 64,809.53

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Solution

The fourth proportional to 115,797.84, 159,808.07 and 64,809.53 is: 89,441.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,797.84 : 159,808.07 = 64,809.53 : x
  2. Step 2: Convert to fraction form
    115,797.84/159,808.07 = 64,809.53/x
  3. Step 3: Cross multiply
    115,797.84x = 159,808.07 × 64,809.53
  4. Step 4: Simplify right side
    115,797.84x = 10,357,084,783.82
  5. Step 5: Solve for x
    x = 10,357,084,783.82/115,797.84
  6. Step 6: Final answer
    x = 89,441.09

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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.