Home / 134,823.91-186,056.78-74,394.51

Finding the Fourth Proportional to 134,823.91, 186,056.78 and 74,394.51

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Solution

The fourth proportional to 134,823.91, 186,056.78 and 74,394.51 is: 102,664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,823.91 : 186,056.78 = 74,394.51 : x
  2. Step 2: Convert to fraction form
    134,823.91/186,056.78 = 74,394.51/x
  3. Step 3: Cross multiply
    134,823.91x = 186,056.78 × 74,394.51
  4. Step 4: Simplify right side
    134,823.91x = 13,841,602,189.57
  5. Step 5: Solve for x
    x = 13,841,602,189.57/134,823.91
  6. Step 6: Final answer
    x = 102,664.30

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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.