Home / 145,405.92-217,758.90-98,516.64

Finding the Fourth Proportional to 145,405.92, 217,758.90 and 98,516.64

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Solution

The fourth proportional to 145,405.92, 217,758.90 and 98,516.64 is: 147,537.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,405.92 : 217,758.90 = 98,516.64 : x
  2. Step 2: Convert to fraction form
    145,405.92/217,758.90 = 98,516.64/x
  3. Step 3: Cross multiply
    145,405.92x = 217,758.90 × 98,516.64
  4. Step 4: Simplify right side
    145,405.92x = 21,452,875,158.10
  5. Step 5: Solve for x
    x = 21,452,875,158.10/145,405.92
  6. Step 6: Final answer
    x = 147,537.84

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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.