Home / 134,428.40-185,500.20-77,843.44

Finding the Fourth Proportional to 134,428.40, 185,500.20 and 77,843.44

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Solution

The fourth proportional to 134,428.40, 185,500.20 and 77,843.44 is: 107,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,428.40 : 185,500.20 = 77,843.44 : x
  2. Step 2: Convert to fraction form
    134,428.40/185,500.20 = 77,843.44/x
  3. Step 3: Cross multiply
    134,428.40x = 185,500.20 × 77,843.44
  4. Step 4: Simplify right side
    134,428.40x = 14,439,973,688.69
  5. Step 5: Solve for x
    x = 14,439,973,688.69/134,428.40
  6. Step 6: Final answer
    x = 107,417.58

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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.