Home / 103,485.05-155,197.59-40,291.10

Finding the Fourth Proportional to 103,485.05, 155,197.59 and 40,291.10

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Solution

The fourth proportional to 103,485.05, 155,197.59 and 40,291.10 is: 60,424.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,485.05 : 155,197.59 = 40,291.10 : x
  2. Step 2: Convert to fraction form
    103,485.05/155,197.59 = 40,291.10/x
  3. Step 3: Cross multiply
    103,485.05x = 155,197.59 × 40,291.10
  4. Step 4: Simplify right side
    103,485.05x = 6,253,081,618.45
  5. Step 5: Solve for x
    x = 6,253,081,618.45/103,485.05
  6. Step 6: Final answer
    x = 60,424.98

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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.