Home / 112,459.26-155,193.77-61,472.20

Finding the Fourth Proportional to 112,459.26, 155,193.77 and 61,472.20

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Solution

The fourth proportional to 112,459.26, 155,193.77 and 61,472.20 is: 84,831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,459.26 : 155,193.77 = 61,472.20 : x
  2. Step 2: Convert to fraction form
    112,459.26/155,193.77 = 61,472.20/x
  3. Step 3: Cross multiply
    112,459.26x = 155,193.77 × 61,472.20
  4. Step 4: Simplify right side
    112,459.26x = 9,540,102,233.89
  5. Step 5: Solve for x
    x = 9,540,102,233.89/112,459.26
  6. Step 6: Final answer
    x = 84,831.63

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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.