Home / 134,711.21-185,900.33-74,284.40

Finding the Fourth Proportional to 134,711.21, 185,900.33 and 74,284.40

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Solution

The fourth proportional to 134,711.21, 185,900.33 and 74,284.40 is: 102,511.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,711.21 : 185,900.33 = 74,284.40 : x
  2. Step 2: Convert to fraction form
    134,711.21/185,900.33 = 74,284.40/x
  3. Step 3: Cross multiply
    134,711.21x = 185,900.33 × 74,284.40
  4. Step 4: Simplify right side
    134,711.21x = 13,809,493,172.93
  5. Step 5: Solve for x
    x = 13,809,493,172.93/134,711.21
  6. Step 6: Final answer
    x = 102,511.84

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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.