Home / 118,890.12-177,272.28-115,624.20

Finding the Fourth Proportional to 118,890.12, 177,272.28 and 115,624.20

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Solution

The fourth proportional to 118,890.12, 177,272.28 and 115,624.20 is: 172,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,890.12 : 177,272.28 = 115,624.20 : x
  2. Step 2: Convert to fraction form
    118,890.12/177,272.28 = 115,624.20/x
  3. Step 3: Cross multiply
    118,890.12x = 177,272.28 × 115,624.20
  4. Step 4: Simplify right side
    118,890.12x = 20,496,965,557.18
  5. Step 5: Solve for x
    x = 20,496,965,557.18/118,890.12
  6. Step 6: Final answer
    x = 172,402.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.