Home / 105,093.10-157,639.65-103,365.10

Finding the Fourth Proportional to 105,093.10, 157,639.65 and 103,365.10

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Solution

The fourth proportional to 105,093.10, 157,639.65 and 103,365.10 is: 155,047.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,093.10 : 157,639.65 = 103,365.10 : x
  2. Step 2: Convert to fraction form
    105,093.10/157,639.65 = 103,365.10/x
  3. Step 3: Cross multiply
    105,093.10x = 157,639.65 × 103,365.10
  4. Step 4: Simplify right side
    105,093.10x = 16,294,438,186.22
  5. Step 5: Solve for x
    x = 16,294,438,186.22/105,093.10
  6. Step 6: Final answer
    x = 155,047.65

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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.