Home / 104,816.32-144,649.28-57,071.68

Finding the Fourth Proportional to 104,816.32, 144,649.28 and 57,071.68

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Solution

The fourth proportional to 104,816.32, 144,649.28 and 57,071.68 is: 78,760.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,816.32 : 144,649.28 = 57,071.68 : x
  2. Step 2: Convert to fraction form
    104,816.32/144,649.28 = 57,071.68/x
  3. Step 3: Cross multiply
    104,816.32x = 144,649.28 × 57,071.68
  4. Step 4: Simplify right side
    104,816.32x = 8,255,377,420.39
  5. Step 5: Solve for x
    x = 8,255,377,420.39/104,816.32
  6. Step 6: Final answer
    x = 78,760.42

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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.