Home / 115,235.24-159,018-64,246.28

Finding the Fourth Proportional to 115,235.24, 159,018 and 64,246.28

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Solution

The fourth proportional to 115,235.24, 159,018 and 64,246.28 is: 88,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,235.24 : 159,018 = 64,246.28 : x
  2. Step 2: Convert to fraction form
    115,235.24/159,018 = 64,246.28/x
  3. Step 3: Cross multiply
    115,235.24x = 159,018 × 64,246.28
  4. Step 4: Simplify right side
    115,235.24x = 10,216,314,953.04
  5. Step 5: Solve for x
    x = 10,216,314,953.04/115,235.24
  6. Step 6: Final answer
    x = 88,656.17

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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.