Home / 149,018.84-205,637.69-85,360.74

Finding the Fourth Proportional to 149,018.84, 205,637.69 and 85,360.74

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Solution

The fourth proportional to 149,018.84, 205,637.69 and 85,360.74 is: 117,793.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,018.84 : 205,637.69 = 85,360.74 : x
  2. Step 2: Convert to fraction form
    149,018.84/205,637.69 = 85,360.74/x
  3. Step 3: Cross multiply
    149,018.84x = 205,637.69 × 85,360.74
  4. Step 4: Simplify right side
    149,018.84x = 17,553,384,352.40
  5. Step 5: Solve for x
    x = 17,553,384,352.40/149,018.84
  6. Step 6: Final answer
    x = 117,793.06

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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.