Home / 136,309.57-188,084.73-75,878.67

Finding the Fourth Proportional to 136,309.57, 188,084.73 and 75,878.67

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Solution

The fourth proportional to 136,309.57, 188,084.73 and 75,878.67 is: 104,700.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,309.57 : 188,084.73 = 75,878.67 : x
  2. Step 2: Convert to fraction form
    136,309.57/188,084.73 = 75,878.67/x
  3. Step 3: Cross multiply
    136,309.57x = 188,084.73 × 75,878.67
  4. Step 4: Simplify right side
    136,309.57x = 14,271,620,149.57
  5. Step 5: Solve for x
    x = 14,271,620,149.57/136,309.57
  6. Step 6: Final answer
    x = 104,700.06

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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.