Home / 128,842.16-193,281.46-49,964.36

Finding the Fourth Proportional to 128,842.16, 193,281.46 and 49,964.36

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Solution

The fourth proportional to 128,842.16, 193,281.46 and 49,964.36 is: 74,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,842.16 : 193,281.46 = 49,964.36 : x
  2. Step 2: Convert to fraction form
    128,842.16/193,281.46 = 49,964.36/x
  3. Step 3: Cross multiply
    128,842.16x = 193,281.46 × 49,964.36
  4. Step 4: Simplify right side
    128,842.16x = 9,657,183,357.45
  5. Step 5: Solve for x
    x = 9,657,183,357.45/128,842.16
  6. Step 6: Final answer
    x = 74,953.60

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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.