Home / 134,040.56-185,038.88-77,440.96

Finding the Fourth Proportional to 134,040.56, 185,038.88 and 77,440.96

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Solution

The fourth proportional to 134,040.56, 185,038.88 and 77,440.96 is: 106,904.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,040.56 : 185,038.88 = 77,440.96 : x
  2. Step 2: Convert to fraction form
    134,040.56/185,038.88 = 77,440.96/x
  3. Step 3: Cross multiply
    134,040.56x = 185,038.88 × 77,440.96
  4. Step 4: Simplify right side
    134,040.56x = 14,329,588,504.52
  5. Step 5: Solve for x
    x = 14,329,588,504.52/134,040.56
  6. Step 6: Final answer
    x = 106,904.87

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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.