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Finding the Fourth Proportional to 103,651.20, 143,035.20 and 58,330.08

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Solution

The fourth proportional to 103,651.20, 143,035.20 and 58,330.08 is: 80,493.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,651.20 : 143,035.20 = 58,330.08 : x
  2. Step 2: Convert to fraction form
    103,651.20/143,035.20 = 58,330.08/x
  3. Step 3: Cross multiply
    103,651.20x = 143,035.20 × 58,330.08
  4. Step 4: Simplify right side
    103,651.20x = 8,343,254,658.82
  5. Step 5: Solve for x
    x = 8,343,254,658.82/103,651.20
  6. Step 6: Final answer
    x = 80,493.57

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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.