Home / 125,415.36-173,076.48-71,709.12

Finding the Fourth Proportional to 125,415.36, 173,076.48 and 71,709.12

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Solution

The fourth proportional to 125,415.36, 173,076.48 and 71,709.12 is: 98,960.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,415.36 : 173,076.48 = 71,709.12 : x
  2. Step 2: Convert to fraction form
    125,415.36/173,076.48 = 71,709.12/x
  3. Step 3: Cross multiply
    125,415.36x = 173,076.48 × 71,709.12
  4. Step 4: Simplify right side
    125,415.36x = 12,411,162,073.50
  5. Step 5: Solve for x
    x = 12,411,162,073.50/125,415.36
  6. Step 6: Final answer
    x = 98,960.46

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1.5x scale

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.