Home / 154,095.48-212,635.92-105,738.87

Finding the Fourth Proportional to 154,095.48, 212,635.92 and 105,738.87

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Solution

The fourth proportional to 154,095.48, 212,635.92 and 105,738.87 is: 145,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,095.48 : 212,635.92 = 105,738.87 : x
  2. Step 2: Convert to fraction form
    154,095.48/212,635.92 = 105,738.87/x
  3. Step 3: Cross multiply
    154,095.48x = 212,635.92 × 105,738.87
  4. Step 4: Simplify right side
    154,095.48x = 22,483,881,902.21
  5. Step 5: Solve for x
    x = 22,483,881,902.21/154,095.48
  6. Step 6: Final answer
    x = 145,908.77

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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.