Home / 135,474.65-186,952.89-74,220.36

Finding the Fourth Proportional to 135,474.65, 186,952.89 and 74,220.36

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Solution

The fourth proportional to 135,474.65, 186,952.89 and 74,220.36 is: 102,422.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,474.65 : 186,952.89 = 74,220.36 : x
  2. Step 2: Convert to fraction form
    135,474.65/186,952.89 = 74,220.36/x
  3. Step 3: Cross multiply
    135,474.65x = 186,952.89 × 74,220.36
  4. Step 4: Simplify right side
    135,474.65x = 13,875,710,798.84
  5. Step 5: Solve for x
    x = 13,875,710,798.84/135,474.65
  6. Step 6: Final answer
    x = 102,422.93

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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.