Home / 78,196.07-117,200.07-36,018.15

Finding the Fourth Proportional to 78,196.07, 117,200.07 and 36,018.15

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Solution

The fourth proportional to 78,196.07, 117,200.07 and 36,018.15 is: 53,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,196.07 : 117,200.07 = 36,018.15 : x
  2. Step 2: Convert to fraction form
    78,196.07/117,200.07 = 36,018.15/x
  3. Step 3: Cross multiply
    78,196.07x = 117,200.07 × 36,018.15
  4. Step 4: Simplify right side
    78,196.07x = 4,221,329,701.27
  5. Step 5: Solve for x
    x = 4,221,329,701.27/78,196.07
  6. Step 6: Final answer
    x = 53,983.91

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1.5x scale

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.