Home / 158,206.75-218,314.34-90,226.58

Finding the Fourth Proportional to 158,206.75, 218,314.34 and 90,226.58

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Solution

The fourth proportional to 158,206.75, 218,314.34 and 90,226.58 is: 124,506.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,206.75 : 218,314.34 = 90,226.58 : x
  2. Step 2: Convert to fraction form
    158,206.75/218,314.34 = 90,226.58/x
  3. Step 3: Cross multiply
    158,206.75x = 218,314.34 × 90,226.58
  4. Step 4: Simplify right side
    158,206.75x = 19,697,756,263.16
  5. Step 5: Solve for x
    x = 19,697,756,263.16/158,206.75
  6. Step 6: Final answer
    x = 124,506.42

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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.