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Finding the Fourth Proportional to 136,493.40, 204,740.10 and 103,032.30

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Solution

The fourth proportional to 136,493.40, 204,740.10 and 103,032.30 is: 154,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,493.40 : 204,740.10 = 103,032.30 : x
  2. Step 2: Convert to fraction form
    136,493.40/204,740.10 = 103,032.30/x
  3. Step 3: Cross multiply
    136,493.40x = 204,740.10 × 103,032.30
  4. Step 4: Simplify right side
    136,493.40x = 21,094,843,405.23
  5. Step 5: Solve for x
    x = 21,094,843,405.23/136,493.40
  6. Step 6: Final answer
    x = 154,548.45

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1.5x scale

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.