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Finding the Fourth Proportional to 143,567.70, 215,397.45 and 43,746.90

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Solution

The fourth proportional to 143,567.70, 215,397.45 and 43,746.90 is: 65,634.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,567.70 : 215,397.45 = 43,746.90 : x
  2. Step 2: Convert to fraction form
    143,567.70/215,397.45 = 43,746.90/x
  3. Step 3: Cross multiply
    143,567.70x = 215,397.45 × 43,746.90
  4. Step 4: Simplify right side
    143,567.70x = 9,422,970,705.41
  5. Step 5: Solve for x
    x = 9,422,970,705.41/143,567.70
  6. Step 6: Final answer
    x = 65,634.34

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1.5x scale

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.