Home / 97,259.28-145,698.48-86,680.32

Finding the Fourth Proportional to 97,259.28, 145,698.48 and 86,680.32

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Solution

The fourth proportional to 97,259.28, 145,698.48 and 86,680.32 is: 129,850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,259.28 : 145,698.48 = 86,680.32 : x
  2. Step 2: Convert to fraction form
    97,259.28/145,698.48 = 86,680.32/x
  3. Step 3: Cross multiply
    97,259.28x = 145,698.48 × 86,680.32
  4. Step 4: Simplify right side
    97,259.28x = 12,629,190,869.91
  5. Step 5: Solve for x
    x = 12,629,190,869.91/97,259.28
  6. Step 6: Final answer
    x = 129,850.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.