Home / 105,391.53-145,433.07-60,068.39

Finding the Fourth Proportional to 105,391.53, 145,433.07 and 60,068.39

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Solution

The fourth proportional to 105,391.53, 145,433.07 and 60,068.39 is: 82,890.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,391.53 : 145,433.07 = 60,068.39 : x
  2. Step 2: Convert to fraction form
    105,391.53/145,433.07 = 60,068.39/x
  3. Step 3: Cross multiply
    105,391.53x = 145,433.07 × 60,068.39
  4. Step 4: Simplify right side
    105,391.53x = 8,735,929,640.49
  5. Step 5: Solve for x
    x = 8,735,929,640.49/105,391.53
  6. Step 6: Final answer
    x = 82,890.24

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1.5x scale

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.