Home / 281,006.17-421,730.67-103,637.72

Finding the Fourth Proportional to 281,006.17, 421,730.67 and 103,637.72

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Solution

The fourth proportional to 281,006.17, 421,730.67 and 103,637.72 is: 155,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,006.17 : 421,730.67 = 103,637.72 : x
  2. Step 2: Convert to fraction form
    281,006.17/421,730.67 = 103,637.72/x
  3. Step 3: Cross multiply
    281,006.17x = 421,730.67 × 103,637.72
  4. Step 4: Simplify right side
    281,006.17x = 43,707,205,092.87
  5. Step 5: Solve for x
    x = 43,707,205,092.87/281,006.17
  6. Step 6: Final answer
    x = 155,538.24

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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.