Home / 115,330.36-159,151.70-64,342.28

Finding the Fourth Proportional to 115,330.36, 159,151.70 and 64,342.28

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Solution

The fourth proportional to 115,330.36, 159,151.70 and 64,342.28 is: 88,790.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,330.36 : 159,151.70 = 64,342.28 : x
  2. Step 2: Convert to fraction form
    115,330.36/159,151.70 = 64,342.28/x
  3. Step 3: Cross multiply
    115,330.36x = 159,151.70 × 64,342.28
  4. Step 4: Simplify right side
    115,330.36x = 10,240,183,243.88
  5. Step 5: Solve for x
    x = 10,240,183,243.88/115,330.36
  6. Step 6: Final answer
    x = 88,790.01

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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.