Home / 154,482.44-213,136.20-86,489.40

Finding the Fourth Proportional to 154,482.44, 213,136.20 and 86,489.40

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Solution

The fourth proportional to 154,482.44, 213,136.20 and 86,489.40 is: 119,327.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,482.44 : 213,136.20 = 86,489.40 : x
  2. Step 2: Convert to fraction form
    154,482.44/213,136.20 = 86,489.40/x
  3. Step 3: Cross multiply
    154,482.44x = 213,136.20 × 86,489.40
  4. Step 4: Simplify right side
    154,482.44x = 18,434,022,056.28
  5. Step 5: Solve for x
    x = 18,434,022,056.28/154,482.44
  6. Step 6: Final answer
    x = 119,327.62

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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.