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Finding the Fourth Proportional to 163,812.80, 245,718.90 and 51,502.82

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Solution

The fourth proportional to 163,812.80, 245,718.90 and 51,502.82 is: 77,254.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,812.80 : 245,718.90 = 51,502.82 : x
  2. Step 2: Convert to fraction form
    163,812.80/245,718.90 = 51,502.82/x
  3. Step 3: Cross multiply
    163,812.80x = 245,718.90 × 51,502.82
  4. Step 4: Simplify right side
    163,812.80x = 12,655,215,048.70
  5. Step 5: Solve for x
    x = 12,655,215,048.70/163,812.80
  6. Step 6: Final answer
    x = 77,254.13

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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.