Home / 143,567.20-215,396.70-43,746.40

Finding the Fourth Proportional to 143,567.20, 215,396.70 and 43,746.40

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Solution

The fourth proportional to 143,567.20, 215,396.70 and 43,746.40 is: 65,633.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,567.20 : 215,396.70 = 43,746.40 : x
  2. Step 2: Convert to fraction form
    143,567.20/215,396.70 = 43,746.40/x
  3. Step 3: Cross multiply
    143,567.20x = 215,396.70 × 43,746.40
  4. Step 4: Simplify right side
    143,567.20x = 9,422,830,196.88
  5. Step 5: Solve for x
    x = 9,422,830,196.88/143,567.20
  6. Step 6: Final answer
    x = 65,633.59

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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.