Home / 93,311.20-139,966.80-92,436.40

Finding the Fourth Proportional to 93,311.20, 139,966.80 and 92,436.40

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Solution

The fourth proportional to 93,311.20, 139,966.80 and 92,436.40 is: 138,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,311.20 : 139,966.80 = 92,436.40 : x
  2. Step 2: Convert to fraction form
    93,311.20/139,966.80 = 92,436.40/x
  3. Step 3: Cross multiply
    93,311.20x = 139,966.80 × 92,436.40
  4. Step 4: Simplify right side
    93,311.20x = 12,938,027,111.52
  5. Step 5: Solve for x
    x = 12,938,027,111.52/93,311.20
  6. Step 6: Final answer
    x = 138,654.60

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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.