Home / 154,023.36-212,434.56-106,356.48

Finding the Fourth Proportional to 154,023.36, 212,434.56 and 106,356.48

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Solution

The fourth proportional to 154,023.36, 212,434.56 and 106,356.48 is: 146,690.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,023.36 : 212,434.56 = 106,356.48 : x
  2. Step 2: Convert to fraction form
    154,023.36/212,434.56 = 106,356.48/x
  3. Step 3: Cross multiply
    154,023.36x = 212,434.56 × 106,356.48
  4. Step 4: Simplify right side
    154,023.36x = 22,593,792,031.95
  5. Step 5: Solve for x
    x = 22,593,792,031.95/154,023.36
  6. Step 6: Final answer
    x = 146,690.68

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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.