Home / 115,329.92-159,164-64,359.04

Finding the Fourth Proportional to 115,329.92, 159,164 and 64,359.04

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Solution

The fourth proportional to 115,329.92, 159,164 and 64,359.04 is: 88,820.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,329.92 : 159,164 = 64,359.04 : x
  2. Step 2: Convert to fraction form
    115,329.92/159,164 = 64,359.04/x
  3. Step 3: Cross multiply
    115,329.92x = 159,164 × 64,359.04
  4. Step 4: Simplify right side
    115,329.92x = 10,243,642,242.56
  5. Step 5: Solve for x
    x = 10,243,642,242.56/115,329.92
  6. Step 6: Final answer
    x = 88,820.34

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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.