Home / 154,029.80-231,044.70-87,444.20

Finding the Fourth Proportional to 154,029.80, 231,044.70 and 87,444.20

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Solution

The fourth proportional to 154,029.80, 231,044.70 and 87,444.20 is: 131,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,029.80 : 231,044.70 = 87,444.20 : x
  2. Step 2: Convert to fraction form
    154,029.80/231,044.70 = 87,444.20/x
  3. Step 3: Cross multiply
    154,029.80x = 231,044.70 × 87,444.20
  4. Step 4: Simplify right side
    154,029.80x = 20,203,518,955.74
  5. Step 5: Solve for x
    x = 20,203,518,955.74/154,029.80
  6. Step 6: Final answer
    x = 131,166.30

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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.