Home / 105,890.24-146,128.80-58,146.68

Finding the Fourth Proportional to 105,890.24, 146,128.80 and 58,146.68

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Solution

The fourth proportional to 105,890.24, 146,128.80 and 58,146.68 is: 80,242.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,890.24 : 146,128.80 = 58,146.68 : x
  2. Step 2: Convert to fraction form
    105,890.24/146,128.80 = 58,146.68/x
  3. Step 3: Cross multiply
    105,890.24x = 146,128.80 × 58,146.68
  4. Step 4: Simplify right side
    105,890.24x = 8,496,904,572.38
  5. Step 5: Solve for x
    x = 8,496,904,572.38/105,890.24
  6. Step 6: Final answer
    x = 80,242.57

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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.