Home / 143,341.74-215,018.91-43,515.90

Finding the Fourth Proportional to 143,341.74, 215,018.91 and 43,515.90

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Solution

The fourth proportional to 143,341.74, 215,018.91 and 43,515.90 is: 65,275.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,341.74 : 215,018.91 = 43,515.90 : x
  2. Step 2: Convert to fraction form
    143,341.74/215,018.91 = 43,515.90/x
  3. Step 3: Cross multiply
    143,341.74x = 215,018.91 × 43,515.90
  4. Step 4: Simplify right side
    143,341.74x = 9,356,741,385.67
  5. Step 5: Solve for x
    x = 9,356,741,385.67/143,341.74
  6. Step 6: Final answer
    x = 65,275.76

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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.