Home / 106,580.16-147,078.72-61,257.60

Finding the Fourth Proportional to 106,580.16, 147,078.72 and 61,257.60

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Solution

The fourth proportional to 106,580.16, 147,078.72 and 61,257.60 is: 84,534.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,580.16 : 147,078.72 = 61,257.60 : x
  2. Step 2: Convert to fraction form
    106,580.16/147,078.72 = 61,257.60/x
  3. Step 3: Cross multiply
    106,580.16x = 147,078.72 × 61,257.60
  4. Step 4: Simplify right side
    106,580.16x = 9,009,689,398.27
  5. Step 5: Solve for x
    x = 9,009,689,398.27/106,580.16
  6. Step 6: Final answer
    x = 84,534.40

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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.