Home / 105,331.95-145,357.11-57,585.15

Finding the Fourth Proportional to 105,331.95, 145,357.11 and 57,585.15

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Solution

The fourth proportional to 105,331.95, 145,357.11 and 57,585.15 is: 79,466.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,331.95 : 145,357.11 = 57,585.15 : x
  2. Step 2: Convert to fraction form
    105,331.95/145,357.11 = 57,585.15/x
  3. Step 3: Cross multiply
    105,331.95x = 145,357.11 × 57,585.15
  4. Step 4: Simplify right side
    105,331.95x = 8,370,410,982.92
  5. Step 5: Solve for x
    x = 8,370,410,982.92/105,331.95
  6. Step 6: Final answer
    x = 79,466.97

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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.