Home / 126,669.12-174,791.16-70,079.28

Finding the Fourth Proportional to 126,669.12, 174,791.16 and 70,079.28

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Solution

The fourth proportional to 126,669.12, 174,791.16 and 70,079.28 is: 96,702.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,669.12 : 174,791.16 = 70,079.28 : x
  2. Step 2: Convert to fraction form
    126,669.12/174,791.16 = 70,079.28/x
  3. Step 3: Cross multiply
    126,669.12x = 174,791.16 × 70,079.28
  4. Step 4: Simplify right side
    126,669.12x = 12,249,238,643.16
  5. Step 5: Solve for x
    x = 12,249,238,643.16/126,669.12
  6. Step 6: Final answer
    x = 96,702.64

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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.