Home / 103,886.52-155,868.64-53,935.44

Finding the Fourth Proportional to 103,886.52, 155,868.64 and 53,935.44

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Solution

The fourth proportional to 103,886.52, 155,868.64 and 53,935.44 is: 80,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,886.52 : 155,868.64 = 53,935.44 : x
  2. Step 2: Convert to fraction form
    103,886.52/155,868.64 = 53,935.44/x
  3. Step 3: Cross multiply
    103,886.52x = 155,868.64 × 53,935.44
  4. Step 4: Simplify right side
    103,886.52x = 8,406,843,680.60
  5. Step 5: Solve for x
    x = 8,406,843,680.60/103,886.52
  6. Step 6: Final answer
    x = 80,923.34

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1.5x scale

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.