Home / 130,931.46-196,483.29-71,808.63

Finding the Fourth Proportional to 130,931.46, 196,483.29 and 71,808.63

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Solution

The fourth proportional to 130,931.46, 196,483.29 and 71,808.63 is: 107,760.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,931.46 : 196,483.29 = 71,808.63 : x
  2. Step 2: Convert to fraction form
    130,931.46/196,483.29 = 71,808.63/x
  3. Step 3: Cross multiply
    130,931.46x = 196,483.29 × 71,808.63
  4. Step 4: Simplify right side
    130,931.46x = 14,109,195,872.79
  5. Step 5: Solve for x
    x = 14,109,195,872.79/130,931.46
  6. Step 6: Final answer
    x = 107,760.17

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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.