Home / 154,002.40-230,809.20-112,400.80

Finding the Fourth Proportional to 154,002.40, 230,809.20 and 112,400.80

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Solution

The fourth proportional to 154,002.40, 230,809.20 and 112,400.80 is: 168,459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,002.40 : 230,809.20 = 112,400.80 : x
  2. Step 2: Convert to fraction form
    154,002.40/230,809.20 = 112,400.80/x
  3. Step 3: Cross multiply
    154,002.40x = 230,809.20 × 112,400.80
  4. Step 4: Simplify right side
    154,002.40x = 25,943,138,727.36
  5. Step 5: Solve for x
    x = 25,943,138,727.36/154,002.40
  6. Step 6: Final answer
    x = 168,459.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.