Home / 105,436.74-145,488.34-62,986.26

Finding the Fourth Proportional to 105,436.74, 145,488.34 and 62,986.26

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Solution

The fourth proportional to 105,436.74, 145,488.34 and 62,986.26 is: 86,912.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,436.74 : 145,488.34 = 62,986.26 : x
  2. Step 2: Convert to fraction form
    105,436.74/145,488.34 = 62,986.26/x
  3. Step 3: Cross multiply
    105,436.74x = 145,488.34 × 62,986.26
  4. Step 4: Simplify right side
    105,436.74x = 9,163,766,410.21
  5. Step 5: Solve for x
    x = 9,163,766,410.21/105,436.74
  6. Step 6: Final answer
    x = 86,912.46

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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.