Home / 113,837.87-157,140.60-101,880.45

Finding the Fourth Proportional to 113,837.87, 157,140.60 and 101,880.45

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Solution

The fourth proportional to 113,837.87, 157,140.60 and 101,880.45 is: 140,634.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,837.87 : 157,140.60 = 101,880.45 : x
  2. Step 2: Convert to fraction form
    113,837.87/157,140.60 = 101,880.45/x
  3. Step 3: Cross multiply
    113,837.87x = 157,140.60 × 101,880.45
  4. Step 4: Simplify right side
    113,837.87x = 16,009,555,041.27
  5. Step 5: Solve for x
    x = 16,009,555,041.27/113,837.87
  6. Step 6: Final answer
    x = 140,634.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.