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Finding the Fourth Proportional to 163,590.65, 245,385.63 and 45,261.65

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Solution

The fourth proportional to 163,590.65, 245,385.63 and 45,261.65 is: 67,892.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,590.65 : 245,385.63 = 45,261.65 : x
  2. Step 2: Convert to fraction form
    163,590.65/245,385.63 = 45,261.65/x
  3. Step 3: Cross multiply
    163,590.65x = 245,385.63 × 45,261.65
  4. Step 4: Simplify right side
    163,590.65x = 11,106,558,500.09
  5. Step 5: Solve for x
    x = 11,106,558,500.09/163,590.65
  6. Step 6: Final answer
    x = 67,892.38

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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.