Home / 97,890.76-135,154.26-75,189.16

Finding the Fourth Proportional to 97,890.76, 135,154.26 and 75,189.16

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Solution

The fourth proportional to 97,890.76, 135,154.26 and 75,189.16 is: 103,810.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,890.76 : 135,154.26 = 75,189.16 : x
  2. Step 2: Convert to fraction form
    97,890.76/135,154.26 = 75,189.16/x
  3. Step 3: Cross multiply
    97,890.76x = 135,154.26 × 75,189.16
  4. Step 4: Simplify right side
    97,890.76x = 10,162,134,228.10
  5. Step 5: Solve for x
    x = 10,162,134,228.10/97,890.76
  6. Step 6: Final answer
    x = 103,810.97

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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.