Home / 189,158.16-283,743.18-70,806.90

Finding the Fourth Proportional to 189,158.16, 283,743.18 and 70,806.90

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Solution

The fourth proportional to 189,158.16, 283,743.18 and 70,806.90 is: 106,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,158.16 : 283,743.18 = 70,806.90 : x
  2. Step 2: Convert to fraction form
    189,158.16/283,743.18 = 70,806.90/x
  3. Step 3: Cross multiply
    189,158.16x = 283,743.18 × 70,806.90
  4. Step 4: Simplify right side
    189,158.16x = 20,090,974,971.94
  5. Step 5: Solve for x
    x = 20,090,974,971.94/189,158.16
  6. Step 6: Final answer
    x = 106,212.57

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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.