Home / 158,422.08-218,622.96-86,802.24

Finding the Fourth Proportional to 158,422.08, 218,622.96 and 86,802.24

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Solution

The fourth proportional to 158,422.08, 218,622.96 and 86,802.24 is: 119,787.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,422.08 : 218,622.96 = 86,802.24 : x
  2. Step 2: Convert to fraction form
    158,422.08/218,622.96 = 86,802.24/x
  3. Step 3: Cross multiply
    158,422.08x = 218,622.96 × 86,802.24
  4. Step 4: Simplify right side
    158,422.08x = 18,976,962,643.43
  5. Step 5: Solve for x
    x = 18,976,962,643.43/158,422.08
  6. Step 6: Final answer
    x = 119,787.36

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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.