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Finding the Fourth Proportional to 99,667.68, 148,389.75 and 98,271.64

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Solution

The fourth proportional to 99,667.68, 148,389.75 and 98,271.64 is: 146,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,667.68 : 148,389.75 = 98,271.64 : x
  2. Step 2: Convert to fraction form
    99,667.68/148,389.75 = 98,271.64/x
  3. Step 3: Cross multiply
    99,667.68x = 148,389.75 × 98,271.64
  4. Step 4: Simplify right side
    99,667.68x = 14,582,504,277.18
  5. Step 5: Solve for x
    x = 14,582,504,277.18/99,667.68
  6. Step 6: Final answer
    x = 146,311.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.