Home / 158,563.25-218,823.90-86,946.02

Finding the Fourth Proportional to 158,563.25, 218,823.90 and 86,946.02

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Solution

The fourth proportional to 158,563.25, 218,823.90 and 86,946.02 is: 119,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,563.25 : 218,823.90 = 86,946.02 : x
  2. Step 2: Convert to fraction form
    158,563.25/218,823.90 = 86,946.02/x
  3. Step 3: Cross multiply
    158,563.25x = 218,823.90 × 86,946.02
  4. Step 4: Simplify right side
    158,563.25x = 19,025,867,185.88
  5. Step 5: Solve for x
    x = 19,025,867,185.88/158,563.25
  6. Step 6: Final answer
    x = 119,989.13

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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.