Home / 105,562.33-145,670.46-57,814.66

Finding the Fourth Proportional to 105,562.33, 145,670.46 and 57,814.66

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Solution

The fourth proportional to 105,562.33, 145,670.46 and 57,814.66 is: 79,781.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,562.33 : 145,670.46 = 57,814.66 : x
  2. Step 2: Convert to fraction form
    105,562.33/145,670.46 = 57,814.66/x
  3. Step 3: Cross multiply
    105,562.33x = 145,670.46 × 57,814.66
  4. Step 4: Simplify right side
    105,562.33x = 8,421,888,116.94
  5. Step 5: Solve for x
    x = 8,421,888,116.94/105,562.33
  6. Step 6: Final answer
    x = 79,781.19

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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.