Home / 111,519.95-153,877.67-63,121.64

Finding the Fourth Proportional to 111,519.95, 153,877.67 and 63,121.64

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Solution

The fourth proportional to 111,519.95, 153,877.67 and 63,121.64 is: 87,096.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,519.95 : 153,877.67 = 63,121.64 : x
  2. Step 2: Convert to fraction form
    111,519.95/153,877.67 = 63,121.64/x
  3. Step 3: Cross multiply
    111,519.95x = 153,877.67 × 63,121.64
  4. Step 4: Simplify right side
    111,519.95x = 9,713,009,804.78
  5. Step 5: Solve for x
    x = 9,713,009,804.78/111,519.95
  6. Step 6: Final answer
    x = 87,096.62

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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.