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Finding the Fourth Proportional to 163,753.40, 245,630.10 and 45,424.74

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Solution

The fourth proportional to 163,753.40, 245,630.10 and 45,424.74 is: 68,137.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,753.40 : 245,630.10 = 45,424.74 : x
  2. Step 2: Convert to fraction form
    163,753.40/245,630.10 = 45,424.74/x
  3. Step 3: Cross multiply
    163,753.40x = 245,630.10 × 45,424.74
  4. Step 4: Simplify right side
    163,753.40x = 11,157,683,428.67
  5. Step 5: Solve for x
    x = 11,157,683,428.67/163,753.40
  6. Step 6: Final answer
    x = 68,137.11

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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.