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Finding the Fourth Proportional to 128,950.95, 193,497.03 and 50,068.29

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Solution

The fourth proportional to 128,950.95, 193,497.03 and 50,068.29 is: 75,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,950.95 : 193,497.03 = 50,068.29 : x
  2. Step 2: Convert to fraction form
    128,950.95/193,497.03 = 50,068.29/x
  3. Step 3: Cross multiply
    128,950.95x = 193,497.03 × 50,068.29
  4. Step 4: Simplify right side
    128,950.95x = 9,688,065,412.18
  5. Step 5: Solve for x
    x = 9,688,065,412.18/128,950.95
  6. Step 6: Final answer
    x = 75,129.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.