Home / 145,731.10-202,026.04-137,748.56

Finding the Fourth Proportional to 145,731.10, 202,026.04 and 137,748.56

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Solution

The fourth proportional to 145,731.10, 202,026.04 and 137,748.56 is: 190,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,731.10 : 202,026.04 = 137,748.56 : x
  2. Step 2: Convert to fraction form
    145,731.10/202,026.04 = 137,748.56/x
  3. Step 3: Cross multiply
    145,731.10x = 202,026.04 × 137,748.56
  4. Step 4: Simplify right side
    145,731.10x = 27,828,796,092.50
  5. Step 5: Solve for x
    x = 27,828,796,092.50/145,731.10
  6. Step 6: Final answer
    x = 190,959.90

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.