Home / 102,931.40-154,290.05-39,794.88

Finding the Fourth Proportional to 102,931.40, 154,290.05 and 39,794.88

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Solution

The fourth proportional to 102,931.40, 154,290.05 and 39,794.88 is: 59,650.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,931.40 : 154,290.05 = 39,794.88 : x
  2. Step 2: Convert to fraction form
    102,931.40/154,290.05 = 39,794.88/x
  3. Step 3: Cross multiply
    102,931.40x = 154,290.05 × 39,794.88
  4. Step 4: Simplify right side
    102,931.40x = 6,139,954,703.02
  5. Step 5: Solve for x
    x = 6,139,954,703.02/102,931.40
  6. Step 6: Final answer
    x = 59,650.94

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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.