Home / 145,026.21-217,545.19-69,085.69

Finding the Fourth Proportional to 145,026.21, 217,545.19 and 69,085.69

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Solution

The fourth proportional to 145,026.21, 217,545.19 and 69,085.69 is: 103,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,026.21 : 217,545.19 = 69,085.69 : x
  2. Step 2: Convert to fraction form
    145,026.21/217,545.19 = 69,085.69/x
  3. Step 3: Cross multiply
    145,026.21x = 217,545.19 × 69,085.69
  4. Step 4: Simplify right side
    145,026.21x = 15,029,260,453.05
  5. Step 5: Solve for x
    x = 15,029,260,453.05/145,026.21
  6. Step 6: Final answer
    x = 103,631.34

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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.