Home / 102,630.48-141,629.64-57,918.16

Finding the Fourth Proportional to 102,630.48, 141,629.64 and 57,918.16

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Solution

The fourth proportional to 102,630.48, 141,629.64 and 57,918.16 is: 79,926.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,630.48 : 141,629.64 = 57,918.16 : x
  2. Step 2: Convert to fraction form
    102,630.48/141,629.64 = 57,918.16/x
  3. Step 3: Cross multiply
    102,630.48x = 141,629.64 × 57,918.16
  4. Step 4: Simplify right side
    102,630.48x = 8,202,928,150.26
  5. Step 5: Solve for x
    x = 8,202,928,150.26/102,630.48
  6. Step 6: Final answer
    x = 79,926.82

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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.