Home / 229,078.40-316,117.26-127,102.68

Finding the Fourth Proportional to 229,078.40, 316,117.26 and 127,102.68

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Solution

The fourth proportional to 229,078.40, 316,117.26 and 127,102.68 is: 175,395.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,078.40 : 316,117.26 = 127,102.68 : x
  2. Step 2: Convert to fraction form
    229,078.40/316,117.26 = 127,102.68/x
  3. Step 3: Cross multiply
    229,078.40x = 316,117.26 × 127,102.68
  4. Step 4: Simplify right side
    229,078.40x = 40,179,350,940.26
  5. Step 5: Solve for x
    x = 40,179,350,940.26/229,078.40
  6. Step 6: Final answer
    x = 175,395.64

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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.