Home / 130,777.62-179,293.94-128,415.66

Finding the Fourth Proportional to 130,777.62, 179,293.94 and 128,415.66

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Solution

The fourth proportional to 130,777.62, 179,293.94 and 128,415.66 is: 176,055.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,777.62 : 179,293.94 = 128,415.66 : x
  2. Step 2: Convert to fraction form
    130,777.62/179,293.94 = 128,415.66/x
  3. Step 3: Cross multiply
    130,777.62x = 179,293.94 × 128,415.66
  4. Step 4: Simplify right side
    130,777.62x = 23,024,148,997.02
  5. Step 5: Solve for x
    x = 23,024,148,997.02/130,777.62
  6. Step 6: Final answer
    x = 176,055.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.