Home / 105,391.56-145,445.68-62,395.73

Finding the Fourth Proportional to 105,391.56, 145,445.68 and 62,395.73

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Solution

The fourth proportional to 105,391.56, 145,445.68 and 62,395.73 is: 86,109.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,391.56 : 145,445.68 = 62,395.73 : x
  2. Step 2: Convert to fraction form
    105,391.56/145,445.68 = 62,395.73/x
  3. Step 3: Cross multiply
    105,391.56x = 145,445.68 × 62,395.73
  4. Step 4: Simplify right side
    105,391.56x = 9,075,188,339.74
  5. Step 5: Solve for x
    x = 9,075,188,339.74/105,391.56
  6. Step 6: Final answer
    x = 86,109.25

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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.