Home / 163,938.72-245,775.51-69,107.67

Finding the Fourth Proportional to 163,938.72, 245,775.51 and 69,107.67

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Solution

The fourth proportional to 163,938.72, 245,775.51 and 69,107.67 is: 103,605.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,938.72 : 245,775.51 = 69,107.67 : x
  2. Step 2: Convert to fraction form
    163,938.72/245,775.51 = 69,107.67/x
  3. Step 3: Cross multiply
    163,938.72x = 245,775.51 × 69,107.67
  4. Step 4: Simplify right side
    163,938.72x = 16,984,972,839.16
  5. Step 5: Solve for x
    x = 16,984,972,839.16/163,938.72
  6. Step 6: Final answer
    x = 103,605.62

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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.