Home / 105,398.59-145,409.19-67,151.29

Finding the Fourth Proportional to 105,398.59, 145,409.19 and 67,151.29

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Solution

The fourth proportional to 105,398.59, 145,409.19 and 67,151.29 is: 92,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,398.59 : 145,409.19 = 67,151.29 : x
  2. Step 2: Convert to fraction form
    105,398.59/145,409.19 = 67,151.29/x
  3. Step 3: Cross multiply
    105,398.59x = 145,409.19 × 67,151.29
  4. Step 4: Simplify right side
    105,398.59x = 9,764,414,686.36
  5. Step 5: Solve for x
    x = 9,764,414,686.36/105,398.59
  6. Step 6: Final answer
    x = 92,642.74

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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.