Home / 105,372.90-157,994.55-42,202.62

Finding the Fourth Proportional to 105,372.90, 157,994.55 and 42,202.62

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Solution

The fourth proportional to 105,372.90, 157,994.55 and 42,202.62 is: 63,277.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,372.90 : 157,994.55 = 42,202.62 : x
  2. Step 2: Convert to fraction form
    105,372.90/157,994.55 = 42,202.62/x
  3. Step 3: Cross multiply
    105,372.90x = 157,994.55 × 42,202.62
  4. Step 4: Simplify right side
    105,372.90x = 6,667,783,955.72
  5. Step 5: Solve for x
    x = 6,667,783,955.72/105,372.90
  6. Step 6: Final answer
    x = 63,277.98

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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.