Home / 134,533.50-185,656.23-77,977.68

Finding the Fourth Proportional to 134,533.50, 185,656.23 and 77,977.68

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Solution

The fourth proportional to 134,533.50, 185,656.23 and 77,977.68 is: 107,609.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,533.50 : 185,656.23 = 77,977.68 : x
  2. Step 2: Convert to fraction form
    134,533.50/185,656.23 = 77,977.68/x
  3. Step 3: Cross multiply
    134,533.50x = 185,656.23 × 77,977.68
  4. Step 4: Simplify right side
    134,533.50x = 14,477,042,092.95
  5. Step 5: Solve for x
    x = 14,477,042,092.95/134,533.50
  6. Step 6: Final answer
    x = 107,609.20

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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.