Home / 150,801.12-208,089.60-87,159.12

Finding the Fourth Proportional to 150,801.12, 208,089.60 and 87,159.12

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Solution

The fourth proportional to 150,801.12, 208,089.60 and 87,159.12 is: 120,270.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,801.12 : 208,089.60 = 87,159.12 : x
  2. Step 2: Convert to fraction form
    150,801.12/208,089.60 = 87,159.12/x
  3. Step 3: Cross multiply
    150,801.12x = 208,089.60 × 87,159.12
  4. Step 4: Simplify right side
    150,801.12x = 18,136,906,417.15
  5. Step 5: Solve for x
    x = 18,136,906,417.15/150,801.12
  6. Step 6: Final answer
    x = 120,270.37

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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.