Home / 137,466.40-189,795.02-105,578.32

Finding the Fourth Proportional to 137,466.40, 189,795.02 and 105,578.32

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Solution

The fourth proportional to 137,466.40, 189,795.02 and 105,578.32 is: 145,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,466.40 : 189,795.02 = 105,578.32 : x
  2. Step 2: Convert to fraction form
    137,466.40/189,795.02 = 105,578.32/x
  3. Step 3: Cross multiply
    137,466.40x = 189,795.02 × 105,578.32
  4. Step 4: Simplify right side
    137,466.40x = 20,038,239,355.97
  5. Step 5: Solve for x
    x = 20,038,239,355.97/137,466.40
  6. Step 6: Final answer
    x = 145,768.27

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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.