Home / 127,979.65-176,610.72-70,619.50

Finding the Fourth Proportional to 127,979.65, 176,610.72 and 70,619.50

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Solution

The fourth proportional to 127,979.65, 176,610.72 and 70,619.50 is: 97,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,979.65 : 176,610.72 = 70,619.50 : x
  2. Step 2: Convert to fraction form
    127,979.65/176,610.72 = 70,619.50/x
  3. Step 3: Cross multiply
    127,979.65x = 176,610.72 × 70,619.50
  4. Step 4: Simplify right side
    127,979.65x = 12,472,160,741.04
  5. Step 5: Solve for x
    x = 12,472,160,741.04/127,979.65
  6. Step 6: Final answer
    x = 97,454.25

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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.