Home / 181,205.40-250,066.86-100,640.49

Finding the Fourth Proportional to 181,205.40, 250,066.86 and 100,640.49

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Solution

The fourth proportional to 181,205.40, 250,066.86 and 100,640.49 is: 138,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,205.40 : 250,066.86 = 100,640.49 : x
  2. Step 2: Convert to fraction form
    181,205.40/250,066.86 = 100,640.49/x
  3. Step 3: Cross multiply
    181,205.40x = 250,066.86 × 100,640.49
  4. Step 4: Simplify right side
    181,205.40x = 25,166,851,323.16
  5. Step 5: Solve for x
    x = 25,166,851,323.16/181,205.40
  6. Step 6: Final answer
    x = 138,885.77

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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.