Home / 150,945.39-208,302.44-87,289.11

Finding the Fourth Proportional to 150,945.39, 208,302.44 and 87,289.11

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Solution

The fourth proportional to 150,945.39, 208,302.44 and 87,289.11 is: 120,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,945.39 : 208,302.44 = 87,289.11 : x
  2. Step 2: Convert to fraction form
    150,945.39/208,302.44 = 87,289.11/x
  3. Step 3: Cross multiply
    150,945.39x = 208,302.44 × 87,289.11
  4. Step 4: Simplify right side
    150,945.39x = 18,182,534,161.98
  5. Step 5: Solve for x
    x = 18,182,534,161.98/150,945.39
  6. Step 6: Final answer
    x = 120,457.70

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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.