Home / 154,943.40-232,415.10-145,612.20

Finding the Fourth Proportional to 154,943.40, 232,415.10 and 145,612.20

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Solution

The fourth proportional to 154,943.40, 232,415.10 and 145,612.20 is: 218,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,943.40 : 232,415.10 = 145,612.20 : x
  2. Step 2: Convert to fraction form
    154,943.40/232,415.10 = 145,612.20/x
  3. Step 3: Cross multiply
    154,943.40x = 232,415.10 × 145,612.20
  4. Step 4: Simplify right side
    154,943.40x = 33,842,474,024.22
  5. Step 5: Solve for x
    x = 33,842,474,024.22/154,943.40
  6. Step 6: Final answer
    x = 218,418.30

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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.