Home / 111,071.90-153,283.29-63,324.74

Finding the Fourth Proportional to 111,071.90, 153,283.29 and 63,324.74

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Solution

The fourth proportional to 111,071.90, 153,283.29 and 63,324.74 is: 87,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,071.90 : 153,283.29 = 63,324.74 : x
  2. Step 2: Convert to fraction form
    111,071.90/153,283.29 = 63,324.74/x
  3. Step 3: Cross multiply
    111,071.90x = 153,283.29 × 63,324.74
  4. Step 4: Simplify right side
    111,071.90x = 9,706,624,485.59
  5. Step 5: Solve for x
    x = 9,706,624,485.59/111,071.90
  6. Step 6: Final answer
    x = 87,390.46

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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.