Home / 103,785.40-155,319.70-62,262.20

Finding the Fourth Proportional to 103,785.40, 155,319.70 and 62,262.20

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Solution

The fourth proportional to 103,785.40, 155,319.70 and 62,262.20 is: 93,178.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,785.40 : 155,319.70 = 62,262.20 : x
  2. Step 2: Convert to fraction form
    103,785.40/155,319.70 = 62,262.20/x
  3. Step 3: Cross multiply
    103,785.40x = 155,319.70 × 62,262.20
  4. Step 4: Simplify right side
    103,785.40x = 9,670,546,225.34
  5. Step 5: Solve for x
    x = 9,670,546,225.34/103,785.40
  6. Step 6: Final answer
    x = 93,178.29

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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.