Home / 75,116.40-112,512.60-70,700.02

Finding the Fourth Proportional to 75,116.40, 112,512.60 and 70,700.02

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Solution

The fourth proportional to 75,116.40, 112,512.60 and 70,700.02 is: 105,897.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,116.40 : 112,512.60 = 70,700.02 : x
  2. Step 2: Convert to fraction form
    75,116.40/112,512.60 = 70,700.02/x
  3. Step 3: Cross multiply
    75,116.40x = 112,512.60 × 70,700.02
  4. Step 4: Simplify right side
    75,116.40x = 7,954,642,788.97
  5. Step 5: Solve for x
    x = 7,954,642,788.97/75,116.40
  6. Step 6: Final answer
    x = 105,897.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.