Home / 143,826.31-215,740.59-43,988.32

Finding the Fourth Proportional to 143,826.31, 215,740.59 and 43,988.32

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Solution

The fourth proportional to 143,826.31, 215,740.59 and 43,988.32 is: 65,982.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,826.31 : 215,740.59 = 43,988.32 : x
  2. Step 2: Convert to fraction form
    143,826.31/215,740.59 = 43,988.32/x
  3. Step 3: Cross multiply
    143,826.31x = 215,740.59 × 43,988.32
  4. Step 4: Simplify right side
    143,826.31x = 9,490,066,109.91
  5. Step 5: Solve for x
    x = 9,490,066,109.91/143,826.31
  6. Step 6: Final answer
    x = 65,982.82

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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.