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Finding the Fourth Proportional to 108,283.84, 162,316.72 and 45,138.93

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Solution

The fourth proportional to 108,283.84, 162,316.72 and 45,138.93 is: 67,662.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,283.84 : 162,316.72 = 45,138.93 : x
  2. Step 2: Convert to fraction form
    108,283.84/162,316.72 = 45,138.93/x
  3. Step 3: Cross multiply
    108,283.84x = 162,316.72 × 45,138.93
  4. Step 4: Simplify right side
    108,283.84x = 7,326,802,024.63
  5. Step 5: Solve for x
    x = 7,326,802,024.63/108,283.84
  6. Step 6: Final answer
    x = 67,662.93

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1.5x scale

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.