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Finding the Fourth Proportional to 103,955.84, 155,950.58 and 40,741.68

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Solution

The fourth proportional to 103,955.84, 155,950.58 and 40,741.68 is: 61,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,955.84 : 155,950.58 = 40,741.68 : x
  2. Step 2: Convert to fraction form
    103,955.84/155,950.58 = 40,741.68/x
  3. Step 3: Cross multiply
    103,955.84x = 155,950.58 × 40,741.68
  4. Step 4: Simplify right side
    103,955.84x = 6,353,688,422.47
  5. Step 5: Solve for x
    x = 6,353,688,422.47/103,955.84
  6. Step 6: Final answer
    x = 61,119.11

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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.