Home / 108,465.15-162,533.70-91,734.60

Finding the Fourth Proportional to 108,465.15, 162,533.70 and 91,734.60

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Solution

The fourth proportional to 108,465.15, 162,533.70 and 91,734.60 is: 137,463.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,465.15 : 162,533.70 = 91,734.60 : x
  2. Step 2: Convert to fraction form
    108,465.15/162,533.70 = 91,734.60/x
  3. Step 3: Cross multiply
    108,465.15x = 162,533.70 × 91,734.60
  4. Step 4: Simplify right side
    108,465.15x = 14,909,963,956.02
  5. Step 5: Solve for x
    x = 14,909,963,956.02/108,465.15
  6. Step 6: Final answer
    x = 137,463.18

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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.