Home / 158,015.92-218,060.48-86,395.18

Finding the Fourth Proportional to 158,015.92, 218,060.48 and 86,395.18

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Solution

The fourth proportional to 158,015.92, 218,060.48 and 86,395.18 is: 119,224.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,015.92 : 218,060.48 = 86,395.18 : x
  2. Step 2: Convert to fraction form
    158,015.92/218,060.48 = 86,395.18/x
  3. Step 3: Cross multiply
    158,015.92x = 218,060.48 × 86,395.18
  4. Step 4: Simplify right side
    158,015.92x = 18,839,374,420.49
  5. Step 5: Solve for x
    x = 18,839,374,420.49/158,015.92
  6. Step 6: Final answer
    x = 119,224.53

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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.