Home / 147,415.80-203,433.87-83,753.70

Finding the Fourth Proportional to 147,415.80, 203,433.87 and 83,753.70

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Solution

The fourth proportional to 147,415.80, 203,433.87 and 83,753.70 is: 115,580.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,415.80 : 203,433.87 = 83,753.70 : x
  2. Step 2: Convert to fraction form
    147,415.80/203,433.87 = 83,753.70/x
  3. Step 3: Cross multiply
    147,415.80x = 203,433.87 × 83,753.70
  4. Step 4: Simplify right side
    147,415.80x = 17,038,339,317.82
  5. Step 5: Solve for x
    x = 17,038,339,317.82/147,415.80
  6. Step 6: Final answer
    x = 115,580.14

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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.