Home / 161,830.11-223,421.23-143,875.42

Finding the Fourth Proportional to 161,830.11, 223,421.23 and 143,875.42

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Solution

The fourth proportional to 161,830.11, 223,421.23 and 143,875.42 is: 198,633.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,830.11 : 223,421.23 = 143,875.42 : x
  2. Step 2: Convert to fraction form
    161,830.11/223,421.23 = 143,875.42/x
  3. Step 3: Cross multiply
    161,830.11x = 223,421.23 × 143,875.42
  4. Step 4: Simplify right side
    161,830.11x = 32,144,824,181.20
  5. Step 5: Solve for x
    x = 32,144,824,181.20/161,830.11
  6. Step 6: Final answer
    x = 198,633.15

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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.