Home / 130,789.77-196,270.80-71,666.95

Finding the Fourth Proportional to 130,789.77, 196,270.80 and 71,666.95

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Solution

The fourth proportional to 130,789.77, 196,270.80 and 71,666.95 is: 107,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,789.77 : 196,270.80 = 71,666.95 : x
  2. Step 2: Convert to fraction form
    130,789.77/196,270.80 = 71,666.95/x
  3. Step 3: Cross multiply
    130,789.77x = 196,270.80 × 71,666.95
  4. Step 4: Simplify right side
    130,789.77x = 14,066,129,610.06
  5. Step 5: Solve for x
    x = 14,066,129,610.06/130,789.77
  6. Step 6: Final answer
    x = 107,547.63

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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.