Home / 103,051.53-154,577.42-28,172.32

Finding the Fourth Proportional to 103,051.53, 154,577.42 and 28,172.32

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Solution

The fourth proportional to 103,051.53, 154,577.42 and 28,172.32 is: 42,258.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,051.53 : 154,577.42 = 28,172.32 : x
  2. Step 2: Convert to fraction form
    103,051.53/154,577.42 = 28,172.32/x
  3. Step 3: Cross multiply
    103,051.53x = 154,577.42 × 28,172.32
  4. Step 4: Simplify right side
    103,051.53x = 4,354,804,267.40
  5. Step 5: Solve for x
    x = 4,354,804,267.40/103,051.53
  6. Step 6: Final answer
    x = 42,258.51

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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.