Home / 128,934.33-193,397.19-53,030.25

Finding the Fourth Proportional to 128,934.33, 193,397.19 and 53,030.25

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Solution

The fourth proportional to 128,934.33, 193,397.19 and 53,030.25 is: 79,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,934.33 : 193,397.19 = 53,030.25 : x
  2. Step 2: Convert to fraction form
    128,934.33/193,397.19 = 53,030.25/x
  3. Step 3: Cross multiply
    128,934.33x = 193,397.19 × 53,030.25
  4. Step 4: Simplify right side
    128,934.33x = 10,255,901,335.00
  5. Step 5: Solve for x
    x = 10,255,901,335.00/128,934.33
  6. Step 6: Final answer
    x = 79,543.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.