Home / 134,861.74-186,133.31-80,417.41

Finding the Fourth Proportional to 134,861.74, 186,133.31 and 80,417.41

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Solution

The fourth proportional to 134,861.74, 186,133.31 and 80,417.41 is: 110,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,861.74 : 186,133.31 = 80,417.41 : x
  2. Step 2: Convert to fraction form
    134,861.74/186,133.31 = 80,417.41/x
  3. Step 3: Cross multiply
    134,861.74x = 186,133.31 × 80,417.41
  4. Step 4: Simplify right side
    134,861.74x = 14,968,358,139.07
  5. Step 5: Solve for x
    x = 14,968,358,139.07/134,861.74
  6. Step 6: Final answer
    x = 110,990.40

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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.