Home / 131,590.80-197,386.20-117,812.70

Finding the Fourth Proportional to 131,590.80, 197,386.20 and 117,812.70

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Solution

The fourth proportional to 131,590.80, 197,386.20 and 117,812.70 is: 176,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,590.80 : 197,386.20 = 117,812.70 : x
  2. Step 2: Convert to fraction form
    131,590.80/197,386.20 = 117,812.70/x
  3. Step 3: Cross multiply
    131,590.80x = 197,386.20 × 117,812.70
  4. Step 4: Simplify right side
    131,590.80x = 23,254,601,164.74
  5. Step 5: Solve for x
    x = 23,254,601,164.74/131,590.80
  6. Step 6: Final answer
    x = 176,719.05

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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.