Home / 127,166.49-190,751.55-38,420.76

Finding the Fourth Proportional to 127,166.49, 190,751.55 and 38,420.76

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Solution

The fourth proportional to 127,166.49, 190,751.55 and 38,420.76 is: 57,631.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,166.49 : 190,751.55 = 38,420.76 : x
  2. Step 2: Convert to fraction form
    127,166.49/190,751.55 = 38,420.76/x
  3. Step 3: Cross multiply
    127,166.49x = 190,751.55 × 38,420.76
  4. Step 4: Simplify right side
    127,166.49x = 7,328,819,522.18
  5. Step 5: Solve for x
    x = 7,328,819,522.18/127,166.49
  6. Step 6: Final answer
    x = 57,631.69

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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.