Home / 215,678.18-297,637.07-125,087.86

Finding the Fourth Proportional to 215,678.18, 297,637.07 and 125,087.86

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Solution

The fourth proportional to 215,678.18, 297,637.07 and 125,087.86 is: 172,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,678.18 : 297,637.07 = 125,087.86 : x
  2. Step 2: Convert to fraction form
    215,678.18/297,637.07 = 125,087.86/x
  3. Step 3: Cross multiply
    215,678.18x = 297,637.07 × 125,087.86
  4. Step 4: Simplify right side
    215,678.18x = 37,230,785,571.83
  5. Step 5: Solve for x
    x = 37,230,785,571.83/215,678.18
  6. Step 6: Final answer
    x = 172,621.94

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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.