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Finding the Fourth Proportional to 150,881.99, 208,235.25 and 90,485.86

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Solution

The fourth proportional to 150,881.99, 208,235.25 and 90,485.86 is: 124,881.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,881.99 : 208,235.25 = 90,485.86 : x
  2. Step 2: Convert to fraction form
    150,881.99/208,235.25 = 90,485.86/x
  3. Step 3: Cross multiply
    150,881.99x = 208,235.25 × 90,485.86
  4. Step 4: Simplify right side
    150,881.99x = 18,842,344,931.76
  5. Step 5: Solve for x
    x = 18,842,344,931.76/150,881.99
  6. Step 6: Final answer
    x = 124,881.34

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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.