Home / 134,342.12-185,418.60-77,019.92

Finding the Fourth Proportional to 134,342.12, 185,418.60 and 77,019.92

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Solution

The fourth proportional to 134,342.12, 185,418.60 and 77,019.92 is: 106,302.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,342.12 : 185,418.60 = 77,019.92 : x
  2. Step 2: Convert to fraction form
    134,342.12/185,418.60 = 77,019.92/x
  3. Step 3: Cross multiply
    134,342.12x = 185,418.60 × 77,019.92
  4. Step 4: Simplify right side
    134,342.12x = 14,280,925,738.51
  5. Step 5: Solve for x
    x = 14,280,925,738.51/134,342.12
  6. Step 6: Final answer
    x = 106,302.67

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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.