Home / 115,722.36-159,695.10-64,736.28

Finding the Fourth Proportional to 115,722.36, 159,695.10 and 64,736.28

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Solution

The fourth proportional to 115,722.36, 159,695.10 and 64,736.28 is: 89,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,722.36 : 159,695.10 = 64,736.28 : x
  2. Step 2: Convert to fraction form
    115,722.36/159,695.10 = 64,736.28/x
  3. Step 3: Cross multiply
    115,722.36x = 159,695.10 × 64,736.28
  4. Step 4: Simplify right side
    115,722.36x = 10,338,066,708.23
  5. Step 5: Solve for x
    x = 10,338,066,708.23/115,722.36
  6. Step 6: Final answer
    x = 89,335.08

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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.