Home / 203,016.75-280,156.10-112,376.67

Finding the Fourth Proportional to 203,016.75, 280,156.10 and 112,376.67

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Solution

The fourth proportional to 203,016.75, 280,156.10 and 112,376.67 is: 155,075.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,016.75 : 280,156.10 = 112,376.67 : x
  2. Step 2: Convert to fraction form
    203,016.75/280,156.10 = 112,376.67/x
  3. Step 3: Cross multiply
    203,016.75x = 280,156.10 × 112,376.67
  4. Step 4: Simplify right side
    203,016.75x = 31,483,009,036.30
  5. Step 5: Solve for x
    x = 31,483,009,036.30/203,016.75
  6. Step 6: Final answer
    x = 155,075.92

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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.