Home / 103,675.08-154,442.63-100,538.86

Finding the Fourth Proportional to 103,675.08, 154,442.63 and 100,538.86

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Solution

The fourth proportional to 103,675.08, 154,442.63 and 100,538.86 is: 149,770.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,675.08 : 154,442.63 = 100,538.86 : x
  2. Step 2: Convert to fraction form
    103,675.08/154,442.63 = 100,538.86/x
  3. Step 3: Cross multiply
    103,675.08x = 154,442.63 × 100,538.86
  4. Step 4: Simplify right side
    103,675.08x = 15,527,485,955.60
  5. Step 5: Solve for x
    x = 15,527,485,955.60/103,675.08
  6. Step 6: Final answer
    x = 149,770.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.