Home / 147,782.72-203,934.24-80,717.12

Finding the Fourth Proportional to 147,782.72, 203,934.24 and 80,717.12

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Solution

The fourth proportional to 147,782.72, 203,934.24 and 80,717.12 is: 111,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,782.72 : 203,934.24 = 80,717.12 : x
  2. Step 2: Convert to fraction form
    147,782.72/203,934.24 = 80,717.12/x
  3. Step 3: Cross multiply
    147,782.72x = 203,934.24 × 80,717.12
  4. Step 4: Simplify right side
    147,782.72x = 16,460,984,522.19
  5. Step 5: Solve for x
    x = 16,460,984,522.19/147,782.72
  6. Step 6: Final answer
    x = 111,386.40

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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.