Home / 130,943.36-196,501.17-71,820.50

Finding the Fourth Proportional to 130,943.36, 196,501.17 and 71,820.50

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Solution

The fourth proportional to 130,943.36, 196,501.17 and 71,820.50 is: 107,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,943.36 : 196,501.17 = 71,820.50 : x
  2. Step 2: Convert to fraction form
    130,943.36/196,501.17 = 71,820.50/x
  3. Step 3: Cross multiply
    130,943.36x = 196,501.17 × 71,820.50
  4. Step 4: Simplify right side
    130,943.36x = 14,112,812,279.99
  5. Step 5: Solve for x
    x = 14,112,812,279.99/130,943.36
  6. Step 6: Final answer
    x = 107,777.99

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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.