Home / 143,403.08-215,051.15-42,174.02

Finding the Fourth Proportional to 143,403.08, 215,051.15 and 42,174.02

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Solution

The fourth proportional to 143,403.08, 215,051.15 and 42,174.02 is: 63,245.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,403.08 : 215,051.15 = 42,174.02 : x
  2. Step 2: Convert to fraction form
    143,403.08/215,051.15 = 42,174.02/x
  3. Step 3: Cross multiply
    143,403.08x = 215,051.15 × 42,174.02
  4. Step 4: Simplify right side
    143,403.08x = 9,069,572,144.19
  5. Step 5: Solve for x
    x = 9,069,572,144.19/143,403.08
  6. Step 6: Final answer
    x = 63,245.31

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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.