Home / 103,640.35-155,551.65-61,467.70

Finding the Fourth Proportional to 103,640.35, 155,551.65 and 61,467.70

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Solution

The fourth proportional to 103,640.35, 155,551.65 and 61,467.70 is: 92,255.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.35 : 155,551.65 = 61,467.70 : x
  2. Step 2: Convert to fraction form
    103,640.35/155,551.65 = 61,467.70/x
  3. Step 3: Cross multiply
    103,640.35x = 155,551.65 × 61,467.70
  4. Step 4: Simplify right side
    103,640.35x = 9,561,402,156.71
  5. Step 5: Solve for x
    x = 9,561,402,156.71/103,640.35
  6. Step 6: Final answer
    x = 92,255.60

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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.