Home / 150,833.84-208,221.45-87,159.20

Finding the Fourth Proportional to 150,833.84, 208,221.45 and 87,159.20

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Solution

The fourth proportional to 150,833.84, 208,221.45 and 87,159.20 is: 120,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,833.84 : 208,221.45 = 87,159.20 : x
  2. Step 2: Convert to fraction form
    150,833.84/208,221.45 = 87,159.20/x
  3. Step 3: Cross multiply
    150,833.84x = 208,221.45 × 87,159.20
  4. Step 4: Simplify right side
    150,833.84x = 18,148,415,004.84
  5. Step 5: Solve for x
    x = 18,148,415,004.84/150,833.84
  6. Step 6: Final answer
    x = 120,320.58

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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.