Home / 100,815.60-151,223.40-26,943.60

Finding the Fourth Proportional to 100,815.60, 151,223.40 and 26,943.60

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Solution

The fourth proportional to 100,815.60, 151,223.40 and 26,943.60 is: 40,415.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,815.60 : 151,223.40 = 26,943.60 : x
  2. Step 2: Convert to fraction form
    100,815.60/151,223.40 = 26,943.60/x
  3. Step 3: Cross multiply
    100,815.60x = 151,223.40 × 26,943.60
  4. Step 4: Simplify right side
    100,815.60x = 4,074,502,800.24
  5. Step 5: Solve for x
    x = 4,074,502,800.24/100,815.60
  6. Step 6: Final answer
    x = 40,415.40

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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.