Home / 105,319.45-157,974.31-26,431.93

Finding the Fourth Proportional to 105,319.45, 157,974.31 and 26,431.93

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Solution

The fourth proportional to 105,319.45, 157,974.31 and 26,431.93 is: 39,646.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,319.45 : 157,974.31 = 26,431.93 : x
  2. Step 2: Convert to fraction form
    105,319.45/157,974.31 = 26,431.93/x
  3. Step 3: Cross multiply
    105,319.45x = 157,974.31 × 26,431.93
  4. Step 4: Simplify right side
    105,319.45x = 4,175,565,903.72
  5. Step 5: Solve for x
    x = 4,175,565,903.72/105,319.45
  6. Step 6: Final answer
    x = 39,646.67

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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.