Home / 112,649.91-155,457.02-70,208.44

Finding the Fourth Proportional to 112,649.91, 155,457.02 and 70,208.44

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Solution

The fourth proportional to 112,649.91, 155,457.02 and 70,208.44 is: 96,887.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,649.91 : 155,457.02 = 70,208.44 : x
  2. Step 2: Convert to fraction form
    112,649.91/155,457.02 = 70,208.44/x
  3. Step 3: Cross multiply
    112,649.91x = 155,457.02 × 70,208.44
  4. Step 4: Simplify right side
    112,649.91x = 10,914,394,648.13
  5. Step 5: Solve for x
    x = 10,914,394,648.13/112,649.91
  6. Step 6: Final answer
    x = 96,887.74

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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.