Home / 115,181.28-172,821.84-56,068.32

Finding the Fourth Proportional to 115,181.28, 172,821.84 and 56,068.32

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Solution

The fourth proportional to 115,181.28, 172,821.84 and 56,068.32 is: 84,126.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,181.28 : 172,821.84 = 56,068.32 : x
  2. Step 2: Convert to fraction form
    115,181.28/172,821.84 = 56,068.32/x
  3. Step 3: Cross multiply
    115,181.28x = 172,821.84 × 56,068.32
  4. Step 4: Simplify right side
    115,181.28x = 9,689,830,228.11
  5. Step 5: Solve for x
    x = 9,689,830,228.11/115,181.28
  6. Step 6: Final answer
    x = 84,126.78

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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.