Home / 117,177.64-175,420.86-72,661.12

Finding the Fourth Proportional to 117,177.64, 175,420.86 and 72,661.12

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Solution

The fourth proportional to 117,177.64, 175,420.86 and 72,661.12 is: 108,777.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,177.64 : 175,420.86 = 72,661.12 : x
  2. Step 2: Convert to fraction form
    117,177.64/175,420.86 = 72,661.12/x
  3. Step 3: Cross multiply
    117,177.64x = 175,420.86 × 72,661.12
  4. Step 4: Simplify right side
    117,177.64x = 12,746,276,158.96
  5. Step 5: Solve for x
    x = 12,746,276,158.96/117,177.64
  6. Step 6: Final answer
    x = 108,777.38

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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.