Home / 128,690.16-193,059.52-48,752.04

Finding the Fourth Proportional to 128,690.16, 193,059.52 and 48,752.04

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Solution

The fourth proportional to 128,690.16, 193,059.52 and 48,752.04 is: 73,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,690.16 : 193,059.52 = 48,752.04 : x
  2. Step 2: Convert to fraction form
    128,690.16/193,059.52 = 48,752.04/x
  3. Step 3: Cross multiply
    128,690.16x = 193,059.52 × 48,752.04
  4. Step 4: Simplify right side
    128,690.16x = 9,412,045,441.42
  5. Step 5: Solve for x
    x = 9,412,045,441.42/128,690.16
  6. Step 6: Final answer
    x = 73,137.26

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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.