Home / 115,297.18-159,110.30-64,313.19

Finding the Fourth Proportional to 115,297.18, 159,110.30 and 64,313.19

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Solution

The fourth proportional to 115,297.18, 159,110.30 and 64,313.19 is: 88,752.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,297.18 : 159,110.30 = 64,313.19 : x
  2. Step 2: Convert to fraction form
    115,297.18/159,110.30 = 64,313.19/x
  3. Step 3: Cross multiply
    115,297.18x = 159,110.30 × 64,313.19
  4. Step 4: Simplify right side
    115,297.18x = 10,232,891,115.64
  5. Step 5: Solve for x
    x = 10,232,891,115.64/115,297.18
  6. Step 6: Final answer
    x = 88,752.31

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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.