Home / 104,742.70-157,442.10-102,774.40

Finding the Fourth Proportional to 104,742.70, 157,442.10 and 102,774.40

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Solution

The fourth proportional to 104,742.70, 157,442.10 and 102,774.40 is: 154,483.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,742.70 : 157,442.10 = 102,774.40 : x
  2. Step 2: Convert to fraction form
    104,742.70/157,442.10 = 102,774.40/x
  3. Step 3: Cross multiply
    104,742.70x = 157,442.10 × 102,774.40
  4. Step 4: Simplify right side
    104,742.70x = 16,181,017,362.24
  5. Step 5: Solve for x
    x = 16,181,017,362.24/104,742.70
  6. Step 6: Final answer
    x = 154,483.49

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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.