Home / 140,643.58-193,904.82-89,637.70

Finding the Fourth Proportional to 140,643.58, 193,904.82 and 89,637.70

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Solution

The fourth proportional to 140,643.58, 193,904.82 and 89,637.70 is: 123,583.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,643.58 : 193,904.82 = 89,637.70 : x
  2. Step 2: Convert to fraction form
    140,643.58/193,904.82 = 89,637.70/x
  3. Step 3: Cross multiply
    140,643.58x = 193,904.82 × 89,637.70
  4. Step 4: Simplify right side
    140,643.58x = 17,381,182,083.71
  5. Step 5: Solve for x
    x = 17,381,182,083.71/140,643.58
  6. Step 6: Final answer
    x = 123,583.19

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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.