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Finding the Fourth Proportional to 163,860, 245,803.34 and 45,531.35

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Solution

The fourth proportional to 163,860, 245,803.34 and 45,531.35 is: 68,300.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,860 : 245,803.34 = 45,531.35 : x
  2. Step 2: Convert to fraction form
    163,860/245,803.34 = 45,531.35/x
  3. Step 3: Cross multiply
    163,860x = 245,803.34 × 45,531.35
  4. Step 4: Simplify right side
    163,860x = 11,191,756,448.04
  5. Step 5: Solve for x
    x = 11,191,756,448.04/163,860
  6. Step 6: Final answer
    x = 68,300.72

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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.