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Finding the Fourth Proportional to 105,237.63, 145,230.77 and 62,820.77

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Solution

The fourth proportional to 105,237.63, 145,230.77 and 62,820.77 is: 86,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,237.63 : 145,230.77 = 62,820.77 : x
  2. Step 2: Convert to fraction form
    105,237.63/145,230.77 = 62,820.77/x
  3. Step 3: Cross multiply
    105,237.63x = 145,230.77 × 62,820.77
  4. Step 4: Simplify right side
    105,237.63x = 9,123,508,229.99
  5. Step 5: Solve for x
    x = 9,123,508,229.99/105,237.63
  6. Step 6: Final answer
    x = 86,694.35

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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.