Home / 118,828.12-178,340.64-59,680.72

Finding the Fourth Proportional to 118,828.12, 178,340.64 and 59,680.72

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Solution

The fourth proportional to 118,828.12, 178,340.64 and 59,680.72 is: 89,570.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,828.12 : 178,340.64 = 59,680.72 : x
  2. Step 2: Convert to fraction form
    118,828.12/178,340.64 = 59,680.72/x
  3. Step 3: Cross multiply
    118,828.12x = 178,340.64 × 59,680.72
  4. Step 4: Simplify right side
    118,828.12x = 10,643,497,800.46
  5. Step 5: Solve for x
    x = 10,643,497,800.46/118,828.12
  6. Step 6: Final answer
    x = 89,570.53

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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.