Home / 154,135.51-231,225.28-47,528.47

Finding the Fourth Proportional to 154,135.51, 231,225.28 and 47,528.47

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Solution

The fourth proportional to 154,135.51, 231,225.28 and 47,528.47 is: 71,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,135.51 : 231,225.28 = 47,528.47 : x
  2. Step 2: Convert to fraction form
    154,135.51/231,225.28 = 47,528.47/x
  3. Step 3: Cross multiply
    154,135.51x = 231,225.28 × 47,528.47
  4. Step 4: Simplify right side
    154,135.51x = 10,989,784,221.28
  5. Step 5: Solve for x
    x = 10,989,784,221.28/154,135.51
  6. Step 6: Final answer
    x = 71,299.50

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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.