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Finding the Fourth Proportional to 163,818.40, 245,738.76 and 55,703.74

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Solution

The fourth proportional to 163,818.40, 245,738.76 and 55,703.74 is: 83,559.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,818.40 : 245,738.76 = 55,703.74 : x
  2. Step 2: Convert to fraction form
    163,818.40/245,738.76 = 55,703.74/x
  3. Step 3: Cross multiply
    163,818.40x = 245,738.76 × 55,703.74
  4. Step 4: Simplify right side
    163,818.40x = 13,688,567,994.96
  5. Step 5: Solve for x
    x = 13,688,567,994.96/163,818.40
  6. Step 6: Final answer
    x = 83,559.40

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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.