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Finding the Fourth Proportional to 163,531.80, 245,103.30 and 146,813.40

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Solution

The fourth proportional to 163,531.80, 245,103.30 and 146,813.40 is: 220,045.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,531.80 : 245,103.30 = 146,813.40 : x
  2. Step 2: Convert to fraction form
    163,531.80/245,103.30 = 146,813.40/x
  3. Step 3: Cross multiply
    163,531.80x = 245,103.30 × 146,813.40
  4. Step 4: Simplify right side
    163,531.80x = 35,984,448,824.22
  5. Step 5: Solve for x
    x = 35,984,448,824.22/163,531.80
  6. Step 6: Final answer
    x = 220,045.57

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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.