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Finding the Fourth Proportional to 130,201, 179,675.77 and 76,490.92

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Solution

The fourth proportional to 130,201, 179,675.77 and 76,490.92 is: 105,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,201 : 179,675.77 = 76,490.92 : x
  2. Step 2: Convert to fraction form
    130,201/179,675.77 = 76,490.92/x
  3. Step 3: Cross multiply
    130,201x = 179,675.77 × 76,490.92
  4. Step 4: Simplify right side
    130,201x = 13,743,564,949.01
  5. Step 5: Solve for x
    x = 13,743,564,949.01/130,201
  6. Step 6: Final answer
    x = 105,556.52

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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.