Home / 189,980.18-284,795.31-84,741.74

Finding the Fourth Proportional to 189,980.18, 284,795.31 and 84,741.74

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Solution

The fourth proportional to 189,980.18, 284,795.31 and 84,741.74 is: 127,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,980.18 : 284,795.31 = 84,741.74 : x
  2. Step 2: Convert to fraction form
    189,980.18/284,795.31 = 84,741.74/x
  3. Step 3: Cross multiply
    189,980.18x = 284,795.31 × 84,741.74
  4. Step 4: Simplify right side
    189,980.18x = 24,134,050,113.24
  5. Step 5: Solve for x
    x = 24,134,050,113.24/189,980.18
  6. Step 6: Final answer
    x = 127,034.57

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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.