Home / 124,860.36-172,308.06-68,271.96

Finding the Fourth Proportional to 124,860.36, 172,308.06 and 68,271.96

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Solution

The fourth proportional to 124,860.36, 172,308.06 and 68,271.96 is: 94,215.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,860.36 : 172,308.06 = 68,271.96 : x
  2. Step 2: Convert to fraction form
    124,860.36/172,308.06 = 68,271.96/x
  3. Step 3: Cross multiply
    124,860.36x = 172,308.06 × 68,271.96
  4. Step 4: Simplify right side
    124,860.36x = 11,763,808,980.00
  5. Step 5: Solve for x
    x = 11,763,808,980.00/124,860.36
  6. Step 6: Final answer
    x = 94,215.72

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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.