Home / 105,274.35-145,278.09-62,269.29

Finding the Fourth Proportional to 105,274.35, 145,278.09 and 62,269.29

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Solution

The fourth proportional to 105,274.35, 145,278.09 and 62,269.29 is: 85,931.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,274.35 : 145,278.09 = 62,269.29 : x
  2. Step 2: Convert to fraction form
    105,274.35/145,278.09 = 62,269.29/x
  3. Step 3: Cross multiply
    105,274.35x = 145,278.09 × 62,269.29
  4. Step 4: Simplify right side
    105,274.35x = 9,046,363,516.86
  5. Step 5: Solve for x
    x = 9,046,363,516.86/105,274.35
  6. Step 6: Final answer
    x = 85,931.32

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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.