Home / 140,482.02-210,467.82-81,192.44

Finding the Fourth Proportional to 140,482.02, 210,467.82 and 81,192.44

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Solution

The fourth proportional to 140,482.02, 210,467.82 and 81,192.44 is: 121,641.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,482.02 : 210,467.82 = 81,192.44 : x
  2. Step 2: Convert to fraction form
    140,482.02/210,467.82 = 81,192.44/x
  3. Step 3: Cross multiply
    140,482.02x = 210,467.82 × 81,192.44
  4. Step 4: Simplify right side
    140,482.02x = 17,088,395,847.28
  5. Step 5: Solve for x
    x = 17,088,395,847.28/140,482.02
  6. Step 6: Final answer
    x = 121,641.16

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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.