Home / 115,640.19-159,574.66-70,311.88

Finding the Fourth Proportional to 115,640.19, 159,574.66 and 70,311.88

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Solution

The fourth proportional to 115,640.19, 159,574.66 and 70,311.88 is: 97,025.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,640.19 : 159,574.66 = 70,311.88 : x
  2. Step 2: Convert to fraction form
    115,640.19/159,574.66 = 70,311.88/x
  3. Step 3: Cross multiply
    115,640.19x = 159,574.66 × 70,311.88
  4. Step 4: Simplify right side
    115,640.19x = 11,219,994,368.65
  5. Step 5: Solve for x
    x = 11,219,994,368.65/115,640.19
  6. Step 6: Final answer
    x = 97,025.04

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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.