Home / 134,918.40-186,211.74-80,474.07

Finding the Fourth Proportional to 134,918.40, 186,211.74 and 80,474.07

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Solution

The fourth proportional to 134,918.40, 186,211.74 and 80,474.07 is: 111,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,918.40 : 186,211.74 = 80,474.07 : x
  2. Step 2: Convert to fraction form
    134,918.40/186,211.74 = 80,474.07/x
  3. Step 3: Cross multiply
    134,918.40x = 186,211.74 × 80,474.07
  4. Step 4: Simplify right side
    134,918.40x = 14,985,216,599.58
  5. Step 5: Solve for x
    x = 14,985,216,599.58/134,918.40
  6. Step 6: Final answer
    x = 111,068.74

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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.