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Finding the Fourth Proportional to 152,520.91, 210,491.46 and 84,559.20

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Solution

The fourth proportional to 152,520.91, 210,491.46 and 84,559.20 is: 116,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,520.91 : 210,491.46 = 84,559.20 : x
  2. Step 2: Convert to fraction form
    152,520.91/210,491.46 = 84,559.20/x
  3. Step 3: Cross multiply
    152,520.91x = 210,491.46 × 84,559.20
  4. Step 4: Simplify right side
    152,520.91x = 17,798,989,464.43
  5. Step 5: Solve for x
    x = 17,798,989,464.43/152,520.91
  6. Step 6: Final answer
    x = 116,698.68

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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.