Home / 113,657.81-170,535.87-61,005.78

Finding the Fourth Proportional to 113,657.81, 170,535.87 and 61,005.78

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Solution

The fourth proportional to 113,657.81, 170,535.87 and 61,005.78 is: 91,535.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,657.81 : 170,535.87 = 61,005.78 : x
  2. Step 2: Convert to fraction form
    113,657.81/170,535.87 = 61,005.78/x
  3. Step 3: Cross multiply
    113,657.81x = 170,535.87 × 61,005.78
  4. Step 4: Simplify right side
    113,657.81x = 10,403,673,767.33
  5. Step 5: Solve for x
    x = 10,403,673,767.33/113,657.81
  6. Step 6: Final answer
    x = 91,535.05

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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.