Home / 94,971.48-130,973.94-81,538.44

Finding the Fourth Proportional to 94,971.48, 130,973.94 and 81,538.44

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Solution

The fourth proportional to 94,971.48, 130,973.94 and 81,538.44 is: 112,448.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,971.48 : 130,973.94 = 81,538.44 : x
  2. Step 2: Convert to fraction form
    94,971.48/130,973.94 = 81,538.44/x
  3. Step 3: Cross multiply
    94,971.48x = 130,973.94 × 81,538.44
  4. Step 4: Simplify right side
    94,971.48x = 10,679,410,748.25
  5. Step 5: Solve for x
    x = 10,679,410,748.25/94,971.48
  6. Step 6: Final answer
    x = 112,448.61

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1.5x scale

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.