Home / 158,522.08-218,783-98,112.18

Finding the Fourth Proportional to 158,522.08, 218,783 and 98,112.18

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Solution

The fourth proportional to 158,522.08, 218,783 and 98,112.18 is: 135,408.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,522.08 : 218,783 = 98,112.18 : x
  2. Step 2: Convert to fraction form
    158,522.08/218,783 = 98,112.18/x
  3. Step 3: Cross multiply
    158,522.08x = 218,783 × 98,112.18
  4. Step 4: Simplify right side
    158,522.08x = 21,465,277,076.94
  5. Step 5: Solve for x
    x = 21,465,277,076.94/158,522.08
  6. Step 6: Final answer
    x = 135,408.75

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1.5x scale

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.