Home / 124,725,108.88-172,121,764.96-68,974,280.01

Finding the Fourth Proportional to 124,725,108.88, 172,121,764.96 and 68,974,280.01

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Solution

The fourth proportional to 124,725,108.88, 172,121,764.96 and 68,974,280.01 is: 95,185,122.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,725,108.88 : 172,121,764.96 = 68,974,280.01 : x
  2. Step 2: Convert to fraction form
    124,725,108.88/172,121,764.96 = 68,974,280.01/x
  3. Step 3: Cross multiply
    124,725,108.88x = 172,121,764.96 × 68,974,280.01
  4. Step 4: Simplify right side
    124,725,108.88x = 11,871,974,812,010,488
  5. Step 5: Solve for x
    x = 11,871,974,812,010,488/124,725,108.88
  6. Step 6: Final answer
    x = 95,185,122.85

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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.