Home / 103,640.42-143,035.38-58,329.42

Finding the Fourth Proportional to 103,640.42, 143,035.38 and 58,329.42

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Solution

The fourth proportional to 103,640.42, 143,035.38 and 58,329.42 is: 80,501.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.42 : 143,035.38 = 58,329.42 : x
  2. Step 2: Convert to fraction form
    103,640.42/143,035.38 = 58,329.42/x
  3. Step 3: Cross multiply
    103,640.42x = 143,035.38 × 58,329.42
  4. Step 4: Simplify right side
    103,640.42x = 8,343,170,754.88
  5. Step 5: Solve for x
    x = 8,343,170,754.88/103,640.42
  6. Step 6: Final answer
    x = 80,501.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.