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Finding the Fourth Proportional to 163,810.67, 245,590.21 and 147,119.74

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Solution

The fourth proportional to 163,810.67, 245,590.21 and 147,119.74 is: 220,566.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,810.67 : 245,590.21 = 147,119.74 : x
  2. Step 2: Convert to fraction form
    163,810.67/245,590.21 = 147,119.74/x
  3. Step 3: Cross multiply
    163,810.67x = 245,590.21 × 147,119.74
  4. Step 4: Simplify right side
    163,810.67x = 36,131,167,411.67
  5. Step 5: Solve for x
    x = 36,131,167,411.67/163,810.67
  6. Step 6: Final answer
    x = 220,566.64

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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.