Home / 111,360.90-166,822.65-103,487.70

Finding the Fourth Proportional to 111,360.90, 166,822.65 and 103,487.70

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Solution

The fourth proportional to 111,360.90, 166,822.65 and 103,487.70 is: 155,028.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,360.90 : 166,822.65 = 103,487.70 : x
  2. Step 2: Convert to fraction form
    111,360.90/166,822.65 = 103,487.70/x
  3. Step 3: Cross multiply
    111,360.90x = 166,822.65 × 103,487.70
  4. Step 4: Simplify right side
    111,360.90x = 17,264,092,356.41
  5. Step 5: Solve for x
    x = 17,264,092,356.41/111,360.90
  6. Step 6: Final answer
    x = 155,028.31

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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.