Home / 163,870.18-245,838.99-69,100.63

Finding the Fourth Proportional to 163,870.18, 245,838.99 and 69,100.63

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Solution

The fourth proportional to 163,870.18, 245,838.99 and 69,100.63 is: 103,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,870.18 : 245,838.99 = 69,100.63 : x
  2. Step 2: Convert to fraction form
    163,870.18/245,838.99 = 69,100.63/x
  3. Step 3: Cross multiply
    163,870.18x = 245,838.99 × 69,100.63
  4. Step 4: Simplify right side
    163,870.18x = 16,987,629,087.56
  5. Step 5: Solve for x
    x = 16,987,629,087.56/163,870.18
  6. Step 6: Final answer
    x = 103,665.16

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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.