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Finding the Fourth Proportional to 144,457.86, 216,644.48 and 54,435.62

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Solution

The fourth proportional to 144,457.86, 216,644.48 and 54,435.62 is: 81,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,457.86 : 216,644.48 = 54,435.62 : x
  2. Step 2: Convert to fraction form
    144,457.86/216,644.48 = 54,435.62/x
  3. Step 3: Cross multiply
    144,457.86x = 216,644.48 × 54,435.62
  4. Step 4: Simplify right side
    144,457.86x = 11,793,176,588.38
  5. Step 5: Solve for x
    x = 11,793,176,588.38/144,457.86
  6. Step 6: Final answer
    x = 81,637.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.