Home / 97,885.21-135,146.63-75,183.58

Finding the Fourth Proportional to 97,885.21, 135,146.63 and 75,183.58

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Solution

The fourth proportional to 97,885.21, 135,146.63 and 75,183.58 is: 103,803.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,885.21 : 135,146.63 = 75,183.58 : x
  2. Step 2: Convert to fraction form
    97,885.21/135,146.63 = 75,183.58/x
  3. Step 3: Cross multiply
    97,885.21x = 135,146.63 × 75,183.58
  4. Step 4: Simplify right side
    97,885.21x = 10,160,806,642.12
  5. Step 5: Solve for x
    x = 10,160,806,642.12/97,885.21
  6. Step 6: Final answer
    x = 103,803.29

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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.