Home / 105,480.23-145,562.47-57,733.16

Finding the Fourth Proportional to 105,480.23, 145,562.47 and 57,733.16

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Solution

The fourth proportional to 105,480.23, 145,562.47 and 57,733.16 is: 79,671.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,480.23 : 145,562.47 = 57,733.16 : x
  2. Step 2: Convert to fraction form
    105,480.23/145,562.47 = 57,733.16/x
  3. Step 3: Cross multiply
    105,480.23x = 145,562.47 × 57,733.16
  4. Step 4: Simplify right side
    105,480.23x = 8,403,780,498.36
  5. Step 5: Solve for x
    x = 8,403,780,498.36/105,480.23
  6. Step 6: Final answer
    x = 79,671.62

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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.