Home / 134,145.50-185,120.79-77,560.52

Finding the Fourth Proportional to 134,145.50, 185,120.79 and 77,560.52

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Solution

The fourth proportional to 134,145.50, 185,120.79 and 77,560.52 is: 107,033.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,145.50 : 185,120.79 = 77,560.52 : x
  2. Step 2: Convert to fraction form
    134,145.50/185,120.79 = 77,560.52/x
  3. Step 3: Cross multiply
    134,145.50x = 185,120.79 × 77,560.52
  4. Step 4: Simplify right side
    134,145.50x = 14,358,064,735.21
  5. Step 5: Solve for x
    x = 14,358,064,735.21/134,145.50
  6. Step 6: Final answer
    x = 107,033.52

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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.