Home / 105,235.85-157,916.04-38,722.68

Finding the Fourth Proportional to 105,235.85, 157,916.04 and 38,722.68

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Solution

The fourth proportional to 105,235.85, 157,916.04 and 38,722.68 is: 58,106.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,235.85 : 157,916.04 = 38,722.68 : x
  2. Step 2: Convert to fraction form
    105,235.85/157,916.04 = 38,722.68/x
  3. Step 3: Cross multiply
    105,235.85x = 157,916.04 × 38,722.68
  4. Step 4: Simplify right side
    105,235.85x = 6,114,932,283.79
  5. Step 5: Solve for x
    x = 6,114,932,283.79/105,235.85
  6. Step 6: Final answer
    x = 58,106.93

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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.