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Finding the Fourth Proportional to 183,869.80, 253,730.82 and 103,300.72

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Solution

The fourth proportional to 183,869.80, 253,730.82 and 103,300.72 is: 142,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,869.80 : 253,730.82 = 103,300.72 : x
  2. Step 2: Convert to fraction form
    183,869.80/253,730.82 = 103,300.72/x
  3. Step 3: Cross multiply
    183,869.80x = 253,730.82 × 103,300.72
  4. Step 4: Simplify right side
    183,869.80x = 26,210,576,392.19
  5. Step 5: Solve for x
    x = 26,210,576,392.19/183,869.80
  6. Step 6: Final answer
    x = 142,549.65

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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.