Home / 142,719.30-214,090.02-42,871.68

Finding the Fourth Proportional to 142,719.30, 214,090.02 and 42,871.68

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Solution

The fourth proportional to 142,719.30, 214,090.02 and 42,871.68 is: 64,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,719.30 : 214,090.02 = 42,871.68 : x
  2. Step 2: Convert to fraction form
    142,719.30/214,090.02 = 42,871.68/x
  3. Step 3: Cross multiply
    142,719.30x = 214,090.02 × 42,871.68
  4. Step 4: Simplify right side
    142,719.30x = 9,178,398,828.63
  5. Step 5: Solve for x
    x = 9,178,398,828.63/142,719.30
  6. Step 6: Final answer
    x = 64,310.85

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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.