Home / 101,916.08-152,718.26-42,719.48

Finding the Fourth Proportional to 101,916.08, 152,718.26 and 42,719.48

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Solution

The fourth proportional to 101,916.08, 152,718.26 and 42,719.48 is: 64,013.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,916.08 : 152,718.26 = 42,719.48 : x
  2. Step 2: Convert to fraction form
    101,916.08/152,718.26 = 42,719.48/x
  3. Step 3: Cross multiply
    101,916.08x = 152,718.26 × 42,719.48
  4. Step 4: Simplify right side
    101,916.08x = 6,524,044,653.70
  5. Step 5: Solve for x
    x = 6,524,044,653.70/101,916.08
  6. Step 6: Final answer
    x = 64,013.89

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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.