Home / 134,711.43-185,903.06-74,284.21

Finding the Fourth Proportional to 134,711.43, 185,903.06 and 74,284.21

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Solution

The fourth proportional to 134,711.43, 185,903.06 and 74,284.21 is: 102,512.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,711.43 : 185,903.06 = 74,284.21 : x
  2. Step 2: Convert to fraction form
    134,711.43/185,903.06 = 74,284.21/x
  3. Step 3: Cross multiply
    134,711.43x = 185,903.06 × 74,284.21
  4. Step 4: Simplify right side
    134,711.43x = 13,809,661,948.68
  5. Step 5: Solve for x
    x = 13,809,661,948.68/134,711.43
  6. Step 6: Final answer
    x = 102,512.92

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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.