Home / 102,405.38-153,633.98-28,533.38

Finding the Fourth Proportional to 102,405.38, 153,633.98 and 28,533.38

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Solution

The fourth proportional to 102,405.38, 153,633.98 and 28,533.38 is: 42,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,405.38 : 153,633.98 = 28,533.38 : x
  2. Step 2: Convert to fraction form
    102,405.38/153,633.98 = 28,533.38/x
  3. Step 3: Cross multiply
    102,405.38x = 153,633.98 × 28,533.38
  4. Step 4: Simplify right side
    102,405.38x = 4,383,696,035.42
  5. Step 5: Solve for x
    x = 4,383,696,035.42/102,405.38
  6. Step 6: Final answer
    x = 42,807.28

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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.