Home / 103,585.70-155,382.18-28,699.82

Finding the Fourth Proportional to 103,585.70, 155,382.18 and 28,699.82

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Solution

The fourth proportional to 103,585.70, 155,382.18 and 28,699.82 is: 43,050.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,585.70 : 155,382.18 = 28,699.82 : x
  2. Step 2: Convert to fraction form
    103,585.70/155,382.18 = 28,699.82/x
  3. Step 3: Cross multiply
    103,585.70x = 155,382.18 × 28,699.82
  4. Step 4: Simplify right side
    103,585.70x = 4,459,440,597.21
  5. Step 5: Solve for x
    x = 4,459,440,597.21/103,585.70
  6. Step 6: Final answer
    x = 43,050.74

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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.