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Finding the Fourth Proportional to 92,037.60, 138,056.40 and 69,730.20

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Solution

The fourth proportional to 92,037.60, 138,056.40 and 69,730.20 is: 104,595.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,037.60 : 138,056.40 = 69,730.20 : x
  2. Step 2: Convert to fraction form
    92,037.60/138,056.40 = 69,730.20/x
  3. Step 3: Cross multiply
    92,037.60x = 138,056.40 × 69,730.20
  4. Step 4: Simplify right side
    92,037.60x = 9,626,700,383.28
  5. Step 5: Solve for x
    x = 9,626,700,383.28/92,037.60
  6. Step 6: Final answer
    x = 104,595.30

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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.