Home / 127,020.64-175,287.12-70,431.52

Finding the Fourth Proportional to 127,020.64, 175,287.12 and 70,431.52

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Solution

The fourth proportional to 127,020.64, 175,287.12 and 70,431.52 is: 97,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,020.64 : 175,287.12 = 70,431.52 : x
  2. Step 2: Convert to fraction form
    127,020.64/175,287.12 = 70,431.52/x
  3. Step 3: Cross multiply
    127,020.64x = 175,287.12 × 70,431.52
  4. Step 4: Simplify right side
    127,020.64x = 12,345,738,298.02
  5. Step 5: Solve for x
    x = 12,345,738,298.02/127,020.64
  6. Step 6: Final answer
    x = 97,194.74

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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.