Home / 134,886.18-186,141.87-74,456.81

Finding the Fourth Proportional to 134,886.18, 186,141.87 and 74,456.81

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Solution

The fourth proportional to 134,886.18, 186,141.87 and 74,456.81 is: 102,749.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,886.18 : 186,141.87 = 74,456.81 : x
  2. Step 2: Convert to fraction form
    134,886.18/186,141.87 = 74,456.81/x
  3. Step 3: Cross multiply
    134,886.18x = 186,141.87 × 74,456.81
  4. Step 4: Simplify right side
    134,886.18x = 13,859,528,916.93
  5. Step 5: Solve for x
    x = 13,859,528,916.93/134,886.18
  6. Step 6: Final answer
    x = 102,749.81

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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.