Home / 78,541.53-116,923.92-78,074.43

Finding the Fourth Proportional to 78,541.53, 116,923.92 and 78,074.43

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Solution

The fourth proportional to 78,541.53, 116,923.92 and 78,074.43 is: 116,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,541.53 : 116,923.92 = 78,074.43 : x
  2. Step 2: Convert to fraction form
    78,541.53/116,923.92 = 78,074.43/x
  3. Step 3: Cross multiply
    78,541.53x = 116,923.92 × 78,074.43
  4. Step 4: Simplify right side
    78,541.53x = 9,128,768,772.99
  5. Step 5: Solve for x
    x = 9,128,768,772.99/78,541.53
  6. Step 6: Final answer
    x = 116,228.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.