Home / 127,813.20-191,719.80-34,328.40

Finding the Fourth Proportional to 127,813.20, 191,719.80 and 34,328.40

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Solution

The fourth proportional to 127,813.20, 191,719.80 and 34,328.40 is: 51,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,813.20 : 191,719.80 = 34,328.40 : x
  2. Step 2: Convert to fraction form
    127,813.20/191,719.80 = 34,328.40/x
  3. Step 3: Cross multiply
    127,813.20x = 191,719.80 × 34,328.40
  4. Step 4: Simplify right side
    127,813.20x = 6,581,433,982.32
  5. Step 5: Solve for x
    x = 6,581,433,982.32/127,813.20
  6. Step 6: Final answer
    x = 51,492.60

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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.