Home / 147,216.35-203,159.54-83,555.21

Finding the Fourth Proportional to 147,216.35, 203,159.54 and 83,555.21

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Solution

The fourth proportional to 147,216.35, 203,159.54 and 83,555.21 is: 115,306.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,216.35 : 203,159.54 = 83,555.21 : x
  2. Step 2: Convert to fraction form
    147,216.35/203,159.54 = 83,555.21/x
  3. Step 3: Cross multiply
    147,216.35x = 203,159.54 × 83,555.21
  4. Step 4: Simplify right side
    147,216.35x = 16,975,038,028.20
  5. Step 5: Solve for x
    x = 16,975,038,028.20/147,216.35
  6. Step 6: Final answer
    x = 115,306.74

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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.