Home / 208,071.56-312,125.79-58,313.66

Finding the Fourth Proportional to 208,071.56, 312,125.79 and 58,313.66

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Solution

The fourth proportional to 208,071.56, 312,125.79 and 58,313.66 is: 87,475.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,071.56 : 312,125.79 = 58,313.66 : x
  2. Step 2: Convert to fraction form
    208,071.56/312,125.79 = 58,313.66/x
  3. Step 3: Cross multiply
    208,071.56x = 312,125.79 × 58,313.66
  4. Step 4: Simplify right side
    208,071.56x = 18,201,197,088.12
  5. Step 5: Solve for x
    x = 18,201,197,088.12/208,071.56
  6. Step 6: Final answer
    x = 87,475.66

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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.