Home / 102,090.02-140,886.66-56,769.90

Finding the Fourth Proportional to 102,090.02, 140,886.66 and 56,769.90

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Solution

The fourth proportional to 102,090.02, 140,886.66 and 56,769.90 is: 78,343.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,090.02 : 140,886.66 = 56,769.90 : x
  2. Step 2: Convert to fraction form
    102,090.02/140,886.66 = 56,769.90/x
  3. Step 3: Cross multiply
    102,090.02x = 140,886.66 × 56,769.90
  4. Step 4: Simplify right side
    102,090.02x = 7,998,121,599.53
  5. Step 5: Solve for x
    x = 7,998,121,599.53/102,090.02
  6. Step 6: Final answer
    x = 78,343.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.