Home / 105,124.11-145,070.22-57,377.04

Finding the Fourth Proportional to 105,124.11, 145,070.22 and 57,377.04

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Solution

The fourth proportional to 105,124.11, 145,070.22 and 57,377.04 is: 79,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,124.11 : 145,070.22 = 57,377.04 : x
  2. Step 2: Convert to fraction form
    105,124.11/145,070.22 = 57,377.04/x
  3. Step 3: Cross multiply
    105,124.11x = 145,070.22 × 57,377.04
  4. Step 4: Simplify right side
    105,124.11x = 8,323,699,815.75
  5. Step 5: Solve for x
    x = 8,323,699,815.75/105,124.11
  6. Step 6: Final answer
    x = 79,179.74

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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.