Home / 130,911.64-196,378.70-36,141.81

Finding the Fourth Proportional to 130,911.64, 196,378.70 and 36,141.81

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Solution

The fourth proportional to 130,911.64, 196,378.70 and 36,141.81 is: 54,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,911.64 : 196,378.70 = 36,141.81 : x
  2. Step 2: Convert to fraction form
    130,911.64/196,378.70 = 36,141.81/x
  3. Step 3: Cross multiply
    130,911.64x = 196,378.70 × 36,141.81
  4. Step 4: Simplify right side
    130,911.64x = 7,097,480,746.32
  5. Step 5: Solve for x
    x = 7,097,480,746.32/130,911.64
  6. Step 6: Final answer
    x = 54,215.81

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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.