Home / 138,416.02-191,014.11-74,753.80

Finding the Fourth Proportional to 138,416.02, 191,014.11 and 74,753.80

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Solution

The fourth proportional to 138,416.02, 191,014.11 and 74,753.80 is: 103,160.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,416.02 : 191,014.11 = 74,753.80 : x
  2. Step 2: Convert to fraction form
    138,416.02/191,014.11 = 74,753.80/x
  3. Step 3: Cross multiply
    138,416.02x = 191,014.11 × 74,753.80
  4. Step 4: Simplify right side
    138,416.02x = 14,279,030,576.12
  5. Step 5: Solve for x
    x = 14,279,030,576.12/138,416.02
  6. Step 6: Final answer
    x = 103,160.25

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1.5x scale

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.