Home / 158,137.64-218,226.18-86,518.25

Finding the Fourth Proportional to 158,137.64, 218,226.18 and 86,518.25

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Solution

The fourth proportional to 158,137.64, 218,226.18 and 86,518.25 is: 119,393.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,137.64 : 218,226.18 = 86,518.25 : x
  2. Step 2: Convert to fraction form
    158,137.64/218,226.18 = 86,518.25/x
  3. Step 3: Cross multiply
    158,137.64x = 218,226.18 × 86,518.25
  4. Step 4: Simplify right side
    158,137.64x = 18,880,546,106.65
  5. Step 5: Solve for x
    x = 18,880,546,106.65/158,137.64
  6. Step 6: Final answer
    x = 119,393.12

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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.