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Finding the Fourth Proportional to 100,937.38, 151,263.30 and 55,978.63

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Solution

The fourth proportional to 100,937.38, 151,263.30 and 55,978.63 is: 83,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,937.38 : 151,263.30 = 55,978.63 : x
  2. Step 2: Convert to fraction form
    100,937.38/151,263.30 = 55,978.63/x
  3. Step 3: Cross multiply
    100,937.38x = 151,263.30 × 55,978.63
  4. Step 4: Simplify right side
    100,937.38x = 8,467,512,303.28
  5. Step 5: Solve for x
    x = 8,467,512,303.28/100,937.38
  6. Step 6: Final answer
    x = 83,888.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.