Home / 115,920.09-174,774.09-115,200.43

Finding the Fourth Proportional to 115,920.09, 174,774.09 and 115,200.43

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Solution

The fourth proportional to 115,920.09, 174,774.09 and 115,200.43 is: 173,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,920.09 : 174,774.09 = 115,200.43 : x
  2. Step 2: Convert to fraction form
    115,920.09/174,774.09 = 115,200.43/x
  3. Step 3: Cross multiply
    115,920.09x = 174,774.09 × 115,200.43
  4. Step 4: Simplify right side
    115,920.09x = 20,134,049,744.86
  5. Step 5: Solve for x
    x = 20,134,049,744.86/115,920.09
  6. Step 6: Final answer
    x = 173,689.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.