Home / 116,663.27-161,010.95-65,686.11

Finding the Fourth Proportional to 116,663.27, 161,010.95 and 65,686.11

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Solution

The fourth proportional to 116,663.27, 161,010.95 and 65,686.11 is: 90,655.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,663.27 : 161,010.95 = 65,686.11 : x
  2. Step 2: Convert to fraction form
    116,663.27/161,010.95 = 65,686.11/x
  3. Step 3: Cross multiply
    116,663.27x = 161,010.95 × 65,686.11
  4. Step 4: Simplify right side
    116,663.27x = 10,576,182,644.47
  5. Step 5: Solve for x
    x = 10,576,182,644.47/116,663.27
  6. Step 6: Final answer
    x = 90,655.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.