Home / 105,355.28-145,378.38-62,336.08

Finding the Fourth Proportional to 105,355.28, 145,378.38 and 62,336.08

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Solution

The fourth proportional to 105,355.28, 145,378.38 and 62,336.08 is: 86,016.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,355.28 : 145,378.38 = 62,336.08 : x
  2. Step 2: Convert to fraction form
    105,355.28/145,378.38 = 62,336.08/x
  3. Step 3: Cross multiply
    105,355.28x = 145,378.38 × 62,336.08
  4. Step 4: Simplify right side
    105,355.28x = 9,062,318,325.95
  5. Step 5: Solve for x
    x = 9,062,318,325.95/105,355.28
  6. Step 6: Final answer
    x = 86,016.75

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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.