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Finding the Fourth Proportional to 105,225.56, 145,259.07 and 67,037.47

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Solution

The fourth proportional to 105,225.56, 145,259.07 and 67,037.47 is: 92,542.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,225.56 : 145,259.07 = 67,037.47 : x
  2. Step 2: Convert to fraction form
    105,225.56/145,259.07 = 67,037.47/x
  3. Step 3: Cross multiply
    105,225.56x = 145,259.07 × 67,037.47
  4. Step 4: Simplify right side
    105,225.56x = 9,737,801,126.98
  5. Step 5: Solve for x
    x = 9,737,801,126.98/105,225.56
  6. Step 6: Final answer
    x = 92,542.17

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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.