Home / 102,683.91-154,040.49-31,612.47

Finding the Fourth Proportional to 102,683.91, 154,040.49 and 31,612.47

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Solution

The fourth proportional to 102,683.91, 154,040.49 and 31,612.47 is: 47,423.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,683.91 : 154,040.49 = 31,612.47 : x
  2. Step 2: Convert to fraction form
    102,683.91/154,040.49 = 31,612.47/x
  3. Step 3: Cross multiply
    102,683.91x = 154,040.49 × 31,612.47
  4. Step 4: Simplify right side
    102,683.91x = 4,869,600,368.91
  5. Step 5: Solve for x
    x = 4,869,600,368.91/102,683.91
  6. Step 6: Final answer
    x = 47,423.21

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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.