Home / 115,495.84-159,380.97-64,507.07

Finding the Fourth Proportional to 115,495.84, 159,380.97 and 64,507.07

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Solution

The fourth proportional to 115,495.84, 159,380.97 and 64,507.07 is: 89,017.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,495.84 : 159,380.97 = 64,507.07 : x
  2. Step 2: Convert to fraction form
    115,495.84/159,380.97 = 64,507.07/x
  3. Step 3: Cross multiply
    115,495.84x = 159,380.97 × 64,507.07
  4. Step 4: Simplify right side
    115,495.84x = 10,281,200,327.65
  5. Step 5: Solve for x
    x = 10,281,200,327.65/115,495.84
  6. Step 6: Final answer
    x = 89,017.93

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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.