Home / 112,320.56-154,937.40-72,576.56

Finding the Fourth Proportional to 112,320.56, 154,937.40 and 72,576.56

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Solution

The fourth proportional to 112,320.56, 154,937.40 and 72,576.56 is: 100,113.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,320.56 : 154,937.40 = 72,576.56 : x
  2. Step 2: Convert to fraction form
    112,320.56/154,937.40 = 72,576.56/x
  3. Step 3: Cross multiply
    112,320.56x = 154,937.40 × 72,576.56
  4. Step 4: Simplify right side
    112,320.56x = 11,244,823,507.34
  5. Step 5: Solve for x
    x = 11,244,823,507.34/112,320.56
  6. Step 6: Final answer
    x = 100,113.67

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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.