Home / 158,629.45-218,908.95-87,010.06

Finding the Fourth Proportional to 158,629.45, 218,908.95 and 87,010.06

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Solution

The fourth proportional to 158,629.45, 218,908.95 and 87,010.06 is: 120,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,629.45 : 218,908.95 = 87,010.06 : x
  2. Step 2: Convert to fraction form
    158,629.45/218,908.95 = 87,010.06/x
  3. Step 3: Cross multiply
    158,629.45x = 218,908.95 × 87,010.06
  4. Step 4: Simplify right side
    158,629.45x = 19,047,280,874.04
  5. Step 5: Solve for x
    x = 19,047,280,874.04/158,629.45
  6. Step 6: Final answer
    x = 120,074.05

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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.