Home / 118,981.12-178,750.56-112,256.32

Finding the Fourth Proportional to 118,981.12, 178,750.56 and 112,256.32

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Solution

The fourth proportional to 118,981.12, 178,750.56 and 112,256.32 is: 168,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,981.12 : 178,750.56 = 112,256.32 : x
  2. Step 2: Convert to fraction form
    118,981.12/178,750.56 = 112,256.32/x
  3. Step 3: Cross multiply
    118,981.12x = 178,750.56 × 112,256.32
  4. Step 4: Simplify right side
    118,981.12x = 20,065,880,063.54
  5. Step 5: Solve for x
    x = 20,065,880,063.54/118,981.12
  6. Step 6: Final answer
    x = 168,647.60

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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.