Home / 163,857.03-245,813.64-75,118.13

Finding the Fourth Proportional to 163,857.03, 245,813.64 and 75,118.13

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Solution

The fourth proportional to 163,857.03, 245,813.64 and 75,118.13 is: 112,690.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,857.03 : 245,813.64 = 75,118.13 : x
  2. Step 2: Convert to fraction form
    163,857.03/245,813.64 = 75,118.13/x
  3. Step 3: Cross multiply
    163,857.03x = 245,813.64 × 75,118.13
  4. Step 4: Simplify right side
    163,857.03x = 18,465,061,759.03
  5. Step 5: Solve for x
    x = 18,465,061,759.03/163,857.03
  6. Step 6: Final answer
    x = 112,690.08

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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.