Home / 146,509.23-219,569.74-75,429

Finding the Fourth Proportional to 146,509.23, 219,569.74 and 75,429

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Solution

The fourth proportional to 146,509.23, 219,569.74 and 75,429 is: 113,043.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,509.23 : 219,569.74 = 75,429 : x
  2. Step 2: Convert to fraction form
    146,509.23/219,569.74 = 75,429/x
  3. Step 3: Cross multiply
    146,509.23x = 219,569.74 × 75,429
  4. Step 4: Simplify right side
    146,509.23x = 16,561,925,918.46
  5. Step 5: Solve for x
    x = 16,561,925,918.46/146,509.23
  6. Step 6: Final answer
    x = 113,043.57

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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.