Home / 143,259.74-197,699.62-89,575.88

Finding the Fourth Proportional to 143,259.74, 197,699.62 and 89,575.88

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Solution

The fourth proportional to 143,259.74, 197,699.62 and 89,575.88 is: 123,615.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,259.74 : 197,699.62 = 89,575.88 : x
  2. Step 2: Convert to fraction form
    143,259.74/197,699.62 = 89,575.88/x
  3. Step 3: Cross multiply
    143,259.74x = 197,699.62 × 89,575.88
  4. Step 4: Simplify right side
    143,259.74x = 17,709,117,437.17
  5. Step 5: Solve for x
    x = 17,709,117,437.17/143,259.74
  6. Step 6: Final answer
    x = 123,615.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.