Home / 118,716.63-178,108.32-47,689.14

Finding the Fourth Proportional to 118,716.63, 178,108.32 and 47,689.14

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Solution

The fourth proportional to 118,716.63, 178,108.32 and 47,689.14 is: 71,547.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,716.63 : 178,108.32 = 47,689.14 : x
  2. Step 2: Convert to fraction form
    118,716.63/178,108.32 = 47,689.14/x
  3. Step 3: Cross multiply
    118,716.63x = 178,108.32 × 47,689.14
  4. Step 4: Simplify right side
    118,716.63x = 8,493,832,607.64
  5. Step 5: Solve for x
    x = 8,493,832,607.64/118,716.63
  6. Step 6: Final answer
    x = 71,547.12

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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.