Home / 127,520.10-190,988.55-65,117.70

Finding the Fourth Proportional to 127,520.10, 190,988.55 and 65,117.70

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Solution

The fourth proportional to 127,520.10, 190,988.55 and 65,117.70 is: 97,527.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,520.10 : 190,988.55 = 65,117.70 : x
  2. Step 2: Convert to fraction form
    127,520.10/190,988.55 = 65,117.70/x
  3. Step 3: Cross multiply
    127,520.10x = 190,988.55 × 65,117.70
  4. Step 4: Simplify right side
    127,520.10x = 12,436,735,102.34
  5. Step 5: Solve for x
    x = 12,436,735,102.34/127,520.10
  6. Step 6: Final answer
    x = 97,527.65

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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.