Home / 150,857.28-208,159.93-87,182.79

Finding the Fourth Proportional to 150,857.28, 208,159.93 and 87,182.79

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Solution

The fourth proportional to 150,857.28, 208,159.93 and 87,182.79 is: 120,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,857.28 : 208,159.93 = 87,182.79 : x
  2. Step 2: Convert to fraction form
    150,857.28/208,159.93 = 87,182.79/x
  3. Step 3: Cross multiply
    150,857.28x = 208,159.93 × 87,182.79
  4. Step 4: Simplify right side
    150,857.28x = 18,147,963,463.60
  5. Step 5: Solve for x
    x = 18,147,963,463.60/150,857.28
  6. Step 6: Final answer
    x = 120,298.89

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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.