Home / 147,985.20-204,180.21-84,321.63

Finding the Fourth Proportional to 147,985.20, 204,180.21 and 84,321.63

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Solution

The fourth proportional to 147,985.20, 204,180.21 and 84,321.63 is: 116,341.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,985.20 : 204,180.21 = 84,321.63 : x
  2. Step 2: Convert to fraction form
    147,985.20/204,180.21 = 84,321.63/x
  3. Step 3: Cross multiply
    147,985.20x = 204,180.21 × 84,321.63
  4. Step 4: Simplify right side
    147,985.20x = 17,216,808,120.94
  5. Step 5: Solve for x
    x = 17,216,808,120.94/147,985.20
  6. Step 6: Final answer
    x = 116,341.42

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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.