Home / 134,505.76-185,618.52-77,147.32

Finding the Fourth Proportional to 134,505.76, 185,618.52 and 77,147.32

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Solution

The fourth proportional to 134,505.76, 185,618.52 and 77,147.32 is: 106,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,505.76 : 185,618.52 = 77,147.32 : x
  2. Step 2: Convert to fraction form
    134,505.76/185,618.52 = 77,147.32/x
  3. Step 3: Cross multiply
    134,505.76x = 185,618.52 × 77,147.32
  4. Step 4: Simplify right side
    134,505.76x = 14,319,971,360.37
  5. Step 5: Solve for x
    x = 14,319,971,360.37/134,505.76
  6. Step 6: Final answer
    x = 106,463.63

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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.