Home / 126,088.36-173,762.64-90,215.89

Finding the Fourth Proportional to 126,088.36, 173,762.64 and 90,215.89

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Solution

The fourth proportional to 126,088.36, 173,762.64 and 90,215.89 is: 124,326.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,088.36 : 173,762.64 = 90,215.89 : x
  2. Step 2: Convert to fraction form
    126,088.36/173,762.64 = 90,215.89/x
  3. Step 3: Cross multiply
    126,088.36x = 173,762.64 × 90,215.89
  4. Step 4: Simplify right side
    126,088.36x = 15,676,150,781.94
  5. Step 5: Solve for x
    x = 15,676,150,781.94/126,088.36
  6. Step 6: Final answer
    x = 124,326.71

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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.