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Finding the Fourth Proportional to 153,149.91, 211,315.91 and 89,475.41

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Solution

The fourth proportional to 153,149.91, 211,315.91 and 89,475.41 is: 123,457.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,149.91 : 211,315.91 = 89,475.41 : x
  2. Step 2: Convert to fraction form
    153,149.91/211,315.91 = 89,475.41/x
  3. Step 3: Cross multiply
    153,149.91x = 211,315.91 × 89,475.41
  4. Step 4: Simplify right side
    153,149.91x = 18,907,576,182.82
  5. Step 5: Solve for x
    x = 18,907,576,182.82/153,149.91
  6. Step 6: Final answer
    x = 123,457.96

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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.