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Finding the Fourth Proportional to 134,655.40, 201,983.10 and 108,411.40

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Solution

The fourth proportional to 134,655.40, 201,983.10 and 108,411.40 is: 162,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,655.40 : 201,983.10 = 108,411.40 : x
  2. Step 2: Convert to fraction form
    134,655.40/201,983.10 = 108,411.40/x
  3. Step 3: Cross multiply
    134,655.40x = 201,983.10 × 108,411.40
  4. Step 4: Simplify right side
    134,655.40x = 21,897,270,647.34
  5. Step 5: Solve for x
    x = 21,897,270,647.34/134,655.40
  6. Step 6: Final answer
    x = 162,617.10

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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.