Home / 93,314.20-139,971.30-92,439.40

Finding the Fourth Proportional to 93,314.20, 139,971.30 and 92,439.40

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Solution

The fourth proportional to 93,314.20, 139,971.30 and 92,439.40 is: 138,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,314.20 : 139,971.30 = 92,439.40 : x
  2. Step 2: Convert to fraction form
    93,314.20/139,971.30 = 92,439.40/x
  3. Step 3: Cross multiply
    93,314.20x = 139,971.30 × 92,439.40
  4. Step 4: Simplify right side
    93,314.20x = 12,938,862,989.22
  5. Step 5: Solve for x
    x = 12,938,862,989.22/93,314.20
  6. Step 6: Final answer
    x = 138,659.10

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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.