Home / 150,574.88-208,037.40-128,150.84

Finding the Fourth Proportional to 150,574.88, 208,037.40 and 128,150.84

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Solution

The fourth proportional to 150,574.88, 208,037.40 and 128,150.84 is: 177,055.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,574.88 : 208,037.40 = 128,150.84 : x
  2. Step 2: Convert to fraction form
    150,574.88/208,037.40 = 128,150.84/x
  3. Step 3: Cross multiply
    150,574.88x = 208,037.40 × 128,150.84
  4. Step 4: Simplify right side
    150,574.88x = 26,660,167,561.42
  5. Step 5: Solve for x
    x = 26,660,167,561.42/150,574.88
  6. Step 6: Final answer
    x = 177,055.88

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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.