Home / 139,538.55-209,307.83-127,291.35

Finding the Fourth Proportional to 139,538.55, 209,307.83 and 127,291.35

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Solution

The fourth proportional to 139,538.55, 209,307.83 and 127,291.35 is: 190,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,538.55 : 209,307.83 = 127,291.35 : x
  2. Step 2: Convert to fraction form
    139,538.55/209,307.83 = 127,291.35/x
  3. Step 3: Cross multiply
    139,538.55x = 209,307.83 × 127,291.35
  4. Step 4: Simplify right side
    139,538.55x = 26,643,075,609.81
  5. Step 5: Solve for x
    x = 26,643,075,609.81/139,538.55
  6. Step 6: Final answer
    x = 190,937.03

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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.