Home / 108,283.90-162,316.81-45,138.98

Finding the Fourth Proportional to 108,283.90, 162,316.81 and 45,138.98

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Solution

The fourth proportional to 108,283.90, 162,316.81 and 45,138.98 is: 67,663.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,283.90 : 162,316.81 = 45,138.98 : x
  2. Step 2: Convert to fraction form
    108,283.90/162,316.81 = 45,138.98/x
  3. Step 3: Cross multiply
    108,283.90x = 162,316.81 × 45,138.98
  4. Step 4: Simplify right side
    108,283.90x = 7,326,815,240.25
  5. Step 5: Solve for x
    x = 7,326,815,240.25/108,283.90
  6. Step 6: Final answer
    x = 67,663.02

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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.