Home / 97,569.36-134,735.40-78,452.28

Finding the Fourth Proportional to 97,569.36, 134,735.40 and 78,452.28

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Solution

The fourth proportional to 97,569.36, 134,735.40 and 78,452.28 is: 108,336.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,569.36 : 134,735.40 = 78,452.28 : x
  2. Step 2: Convert to fraction form
    97,569.36/134,735.40 = 78,452.28/x
  3. Step 3: Cross multiply
    97,569.36x = 134,735.40 × 78,452.28
  4. Step 4: Simplify right side
    97,569.36x = 10,570,299,326.71
  5. Step 5: Solve for x
    x = 10,570,299,326.71/97,569.36
  6. Step 6: Final answer
    x = 108,336.26

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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.