Home / 105,891.42-146,130.16-58,144.77

Finding the Fourth Proportional to 105,891.42, 146,130.16 and 58,144.77

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Solution

The fourth proportional to 105,891.42, 146,130.16 and 58,144.77 is: 80,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,891.42 : 146,130.16 = 58,144.77 : x
  2. Step 2: Convert to fraction form
    105,891.42/146,130.16 = 58,144.77/x
  3. Step 3: Cross multiply
    105,891.42x = 146,130.16 × 58,144.77
  4. Step 4: Simplify right side
    105,891.42x = 8,496,704,543.26
  5. Step 5: Solve for x
    x = 8,496,704,543.26/105,891.42
  6. Step 6: Final answer
    x = 80,239.78

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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.