Home / 158,015.87-218,060.40-86,395.13

Finding the Fourth Proportional to 158,015.87, 218,060.40 and 86,395.13

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Solution

The fourth proportional to 158,015.87, 218,060.40 and 86,395.13 is: 119,224.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,015.87 : 218,060.40 = 86,395.13 : x
  2. Step 2: Convert to fraction form
    158,015.87/218,060.40 = 86,395.13/x
  3. Step 3: Cross multiply
    158,015.87x = 218,060.40 × 86,395.13
  4. Step 4: Simplify right side
    158,015.87x = 18,839,355,515.55
  5. Step 5: Solve for x
    x = 18,839,355,515.55/158,015.87
  6. Step 6: Final answer
    x = 119,224.46

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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.