Home / 102,881.23-154,336.63-31,809.41

Finding the Fourth Proportional to 102,881.23, 154,336.63 and 31,809.41

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Solution

The fourth proportional to 102,881.23, 154,336.63 and 31,809.41 is: 47,718.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,881.23 : 154,336.63 = 31,809.41 : x
  2. Step 2: Convert to fraction form
    102,881.23/154,336.63 = 31,809.41/x
  3. Step 3: Cross multiply
    102,881.23x = 154,336.63 × 31,809.41
  4. Step 4: Simplify right side
    102,881.23x = 4,909,357,452.42
  5. Step 5: Solve for x
    x = 4,909,357,452.42/102,881.23
  6. Step 6: Final answer
    x = 47,718.69

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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.