Home / 163,431.15-245,160.87-45,102.51

Finding the Fourth Proportional to 163,431.15, 245,160.87 and 45,102.51

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Solution

The fourth proportional to 163,431.15, 245,160.87 and 45,102.51 is: 67,657.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,431.15 : 245,160.87 = 45,102.51 : x
  2. Step 2: Convert to fraction form
    163,431.15/245,160.87 = 45,102.51/x
  3. Step 3: Cross multiply
    163,431.15x = 245,160.87 × 45,102.51
  4. Step 4: Simplify right side
    163,431.15x = 11,057,370,590.78
  5. Step 5: Solve for x
    x = 11,057,370,590.78/163,431.15
  6. Step 6: Final answer
    x = 67,657.67

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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.