Home / 99,837.67-149,792.16-42,887.65

Finding the Fourth Proportional to 99,837.67, 149,792.16 and 42,887.65

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Solution

The fourth proportional to 99,837.67, 149,792.16 and 42,887.65 is: 64,346.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,837.67 : 149,792.16 = 42,887.65 : x
  2. Step 2: Convert to fraction form
    99,837.67/149,792.16 = 42,887.65/x
  3. Step 3: Cross multiply
    99,837.67x = 149,792.16 × 42,887.65
  4. Step 4: Simplify right side
    99,837.67x = 6,424,233,730.82
  5. Step 5: Solve for x
    x = 6,424,233,730.82/99,837.67
  6. Step 6: Final answer
    x = 64,346.79

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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.