Home / 138,070.44-207,106.20-42,008.60

Finding the Fourth Proportional to 138,070.44, 207,106.20 and 42,008.60

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Solution

The fourth proportional to 138,070.44, 207,106.20 and 42,008.60 is: 63,013.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,070.44 : 207,106.20 = 42,008.60 : x
  2. Step 2: Convert to fraction form
    138,070.44/207,106.20 = 42,008.60/x
  3. Step 3: Cross multiply
    138,070.44x = 207,106.20 × 42,008.60
  4. Step 4: Simplify right side
    138,070.44x = 8,700,242,031.09
  5. Step 5: Solve for x
    x = 8,700,242,031.09/138,070.44
  6. Step 6: Final answer
    x = 63,013.07

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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.