Home / 131,290.16-196,886.60-103,264.70

Finding the Fourth Proportional to 131,290.16, 196,886.60 and 103,264.70

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Solution

The fourth proportional to 131,290.16, 196,886.60 and 103,264.70 is: 154,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,290.16 : 196,886.60 = 103,264.70 : x
  2. Step 2: Convert to fraction form
    131,290.16/196,886.60 = 103,264.70/x
  3. Step 3: Cross multiply
    131,290.16x = 196,886.60 × 103,264.70
  4. Step 4: Simplify right side
    131,290.16x = 20,331,435,683.02
  5. Step 5: Solve for x
    x = 20,331,435,683.02/131,290.16
  6. Step 6: Final answer
    x = 154,858.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.