Home / 189,738.55-284,700.09-89,779.67

Finding the Fourth Proportional to 189,738.55, 284,700.09 and 89,779.67

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Solution

The fourth proportional to 189,738.55, 284,700.09 and 89,779.67 is: 134,713.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,738.55 : 284,700.09 = 89,779.67 : x
  2. Step 2: Convert to fraction form
    189,738.55/284,700.09 = 89,779.67/x
  3. Step 3: Cross multiply
    189,738.55x = 284,700.09 × 89,779.67
  4. Step 4: Simplify right side
    189,738.55x = 25,560,280,129.17
  5. Step 5: Solve for x
    x = 25,560,280,129.17/189,738.55
  6. Step 6: Final answer
    x = 134,713.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.