Home / 127,699.65-176,225.52-74,015.81

Finding the Fourth Proportional to 127,699.65, 176,225.52 and 74,015.81

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Solution

The fourth proportional to 127,699.65, 176,225.52 and 74,015.81 is: 102,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,699.65 : 176,225.52 = 74,015.81 : x
  2. Step 2: Convert to fraction form
    127,699.65/176,225.52 = 74,015.81/x
  3. Step 3: Cross multiply
    127,699.65x = 176,225.52 × 74,015.81
  4. Step 4: Simplify right side
    127,699.65x = 13,043,473,979.87
  5. Step 5: Solve for x
    x = 13,043,473,979.87/127,699.65
  6. Step 6: Final answer
    x = 102,141.81

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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.