Home / 103,712.19-155,533.69-40,515.93

Finding the Fourth Proportional to 103,712.19, 155,533.69 and 40,515.93

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Solution

The fourth proportional to 103,712.19, 155,533.69 and 40,515.93 is: 60,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,712.19 : 155,533.69 = 40,515.93 : x
  2. Step 2: Convert to fraction form
    103,712.19/155,533.69 = 40,515.93/x
  3. Step 3: Cross multiply
    103,712.19x = 155,533.69 × 40,515.93
  4. Step 4: Simplify right side
    103,712.19x = 6,301,592,096.68
  5. Step 5: Solve for x
    x = 6,301,592,096.68/103,712.19
  6. Step 6: Final answer
    x = 60,760.38

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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.