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Finding the Fourth Proportional to 163,820.10, 245,730.15 and 45,492.60

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Solution

The fourth proportional to 163,820.10, 245,730.15 and 45,492.60 is: 68,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,820.10 : 245,730.15 = 45,492.60 : x
  2. Step 2: Convert to fraction form
    163,820.10/245,730.15 = 45,492.60/x
  3. Step 3: Cross multiply
    163,820.10x = 245,730.15 × 45,492.60
  4. Step 4: Simplify right side
    163,820.10x = 11,178,903,421.89
  5. Step 5: Solve for x
    x = 11,178,903,421.89/163,820.10
  6. Step 6: Final answer
    x = 68,238.90

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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.