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Finding the Fourth Proportional to 134,490.60, 201,390.30 and 99,239.40

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Solution

The fourth proportional to 134,490.60, 201,390.30 and 99,239.40 is: 148,604.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,490.60 : 201,390.30 = 99,239.40 : x
  2. Step 2: Convert to fraction form
    134,490.60/201,390.30 = 99,239.40/x
  3. Step 3: Cross multiply
    134,490.60x = 201,390.30 × 99,239.40
  4. Step 4: Simplify right side
    134,490.60x = 19,985,852,537.82
  5. Step 5: Solve for x
    x = 19,985,852,537.82/134,490.60
  6. Step 6: Final answer
    x = 148,604.08

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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.