Home / 134,970.96-186,251.76-81,273.36

Finding the Fourth Proportional to 134,970.96, 186,251.76 and 81,273.36

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Solution

The fourth proportional to 134,970.96, 186,251.76 and 81,273.36 is: 112,152.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,970.96 : 186,251.76 = 81,273.36 : x
  2. Step 2: Convert to fraction form
    134,970.96/186,251.76 = 81,273.36/x
  3. Step 3: Cross multiply
    134,970.96x = 186,251.76 × 81,273.36
  4. Step 4: Simplify right side
    134,970.96x = 15,137,306,341.11
  5. Step 5: Solve for x
    x = 15,137,306,341.11/134,970.96
  6. Step 6: Final answer
    x = 112,152.32

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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.