Home / 112,647.05-155,453.16-61,663.03

Finding the Fourth Proportional to 112,647.05, 155,453.16 and 61,663.03

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Solution

The fourth proportional to 112,647.05, 155,453.16 and 61,663.03 is: 85,095.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,647.05 : 155,453.16 = 61,663.03 : x
  2. Step 2: Convert to fraction form
    112,647.05/155,453.16 = 61,663.03/x
  3. Step 3: Cross multiply
    112,647.05x = 155,453.16 × 61,663.03
  4. Step 4: Simplify right side
    112,647.05x = 9,585,712,868.67
  5. Step 5: Solve for x
    x = 9,585,712,868.67/112,647.05
  6. Step 6: Final answer
    x = 85,095.11

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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.