Home / 118,766.12-178,269.12-105,345.15

Finding the Fourth Proportional to 118,766.12, 178,269.12 and 105,345.15

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Solution

The fourth proportional to 118,766.12, 178,269.12 and 105,345.15 is: 158,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,766.12 : 178,269.12 = 105,345.15 : x
  2. Step 2: Convert to fraction form
    118,766.12/178,269.12 = 105,345.15/x
  3. Step 3: Cross multiply
    118,766.12x = 178,269.12 × 105,345.15
  4. Step 4: Simplify right side
    118,766.12x = 18,779,787,186.77
  5. Step 5: Solve for x
    x = 18,779,787,186.77/118,766.12
  6. Step 6: Final answer
    x = 158,124.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.