Home / 101,015.03-139,394.48-55,690.67

Finding the Fourth Proportional to 101,015.03, 139,394.48 and 55,690.67

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Solution

The fourth proportional to 101,015.03, 139,394.48 and 55,690.67 is: 76,849.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,015.03 : 139,394.48 = 55,690.67 : x
  2. Step 2: Convert to fraction form
    101,015.03/139,394.48 = 55,690.67/x
  3. Step 3: Cross multiply
    101,015.03x = 139,394.48 × 55,690.67
  4. Step 4: Simplify right side
    101,015.03x = 7,762,971,010.08
  5. Step 5: Solve for x
    x = 7,762,971,010.08/101,015.03
  6. Step 6: Final answer
    x = 76,849.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.