Home / 173,000.45-238,746.51-100,397.75

Finding the Fourth Proportional to 173,000.45, 238,746.51 and 100,397.75

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Solution

The fourth proportional to 173,000.45, 238,746.51 and 100,397.75 is: 138,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,000.45 : 238,746.51 = 100,397.75 : x
  2. Step 2: Convert to fraction form
    173,000.45/238,746.51 = 100,397.75/x
  3. Step 3: Cross multiply
    173,000.45x = 238,746.51 × 100,397.75
  4. Step 4: Simplify right side
    173,000.45x = 23,969,613,021.22
  5. Step 5: Solve for x
    x = 23,969,613,021.22/173,000.45
  6. Step 6: Final answer
    x = 138,552.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.