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Finding the Fourth Proportional to 108,307.60, 162,461.40 and 91,200.40

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Solution

The fourth proportional to 108,307.60, 162,461.40 and 91,200.40 is: 136,800.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,307.60 : 162,461.40 = 91,200.40 : x
  2. Step 2: Convert to fraction form
    108,307.60/162,461.40 = 91,200.40/x
  3. Step 3: Cross multiply
    108,307.60x = 162,461.40 × 91,200.40
  4. Step 4: Simplify right side
    108,307.60x = 14,816,544,664.56
  5. Step 5: Solve for x
    x = 14,816,544,664.56/108,307.60
  6. Step 6: Final answer
    x = 136,800.60

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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.