Home / 116,342.19-160,613.45-78,301.72

Finding the Fourth Proportional to 116,342.19, 160,613.45 and 78,301.72

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Solution

The fourth proportional to 116,342.19, 160,613.45 and 78,301.72 is: 108,097.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,342.19 : 160,613.45 = 78,301.72 : x
  2. Step 2: Convert to fraction form
    116,342.19/160,613.45 = 78,301.72/x
  3. Step 3: Cross multiply
    116,342.19x = 160,613.45 × 78,301.72
  4. Step 4: Simplify right side
    116,342.19x = 12,576,309,319.40
  5. Step 5: Solve for x
    x = 12,576,309,319.40/116,342.19
  6. Step 6: Final answer
    x = 108,097.58

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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.