Home / 145,837.02-218,672.10-86,714.04

Finding the Fourth Proportional to 145,837.02, 218,672.10 and 86,714.04

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Solution

The fourth proportional to 145,837.02, 218,672.10 and 86,714.04 is: 130,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,837.02 : 218,672.10 = 86,714.04 : x
  2. Step 2: Convert to fraction form
    145,837.02/218,672.10 = 86,714.04/x
  3. Step 3: Cross multiply
    145,837.02x = 218,672.10 × 86,714.04
  4. Step 4: Simplify right side
    145,837.02x = 18,961,941,226.28
  5. Step 5: Solve for x
    x = 18,961,941,226.28/145,837.02
  6. Step 6: Final answer
    x = 130,021.45

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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.