Home / 131,293.80-196,503.30-115,547.40

Finding the Fourth Proportional to 131,293.80, 196,503.30 and 115,547.40

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Solution

The fourth proportional to 131,293.80, 196,503.30 and 115,547.40 is: 172,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,293.80 : 196,503.30 = 115,547.40 : x
  2. Step 2: Convert to fraction form
    131,293.80/196,503.30 = 115,547.40/x
  3. Step 3: Cross multiply
    131,293.80x = 196,503.30 × 115,547.40
  4. Step 4: Simplify right side
    131,293.80x = 22,705,445,406.42
  5. Step 5: Solve for x
    x = 22,705,445,406.42/131,293.80
  6. Step 6: Final answer
    x = 172,936.16

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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.