Home / 125,395.10-173,045.21-71,681.27

Finding the Fourth Proportional to 125,395.10, 173,045.21 and 71,681.27

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Solution

The fourth proportional to 125,395.10, 173,045.21 and 71,681.27 is: 98,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,395.10 : 173,045.21 = 71,681.27 : x
  2. Step 2: Convert to fraction form
    125,395.10/173,045.21 = 71,681.27/x
  3. Step 3: Cross multiply
    125,395.10x = 173,045.21 × 71,681.27
  4. Step 4: Simplify right side
    125,395.10x = 12,404,099,196.58
  5. Step 5: Solve for x
    x = 12,404,099,196.58/125,395.10
  6. Step 6: Final answer
    x = 98,920.13

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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.