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Finding the Fourth Proportional to 144,833.48, 199,878.40 and 81,175.40

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Solution

The fourth proportional to 144,833.48, 199,878.40 and 81,175.40 is: 112,026.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,833.48 : 199,878.40 = 81,175.40 : x
  2. Step 2: Convert to fraction form
    144,833.48/199,878.40 = 81,175.40/x
  3. Step 3: Cross multiply
    144,833.48x = 199,878.40 × 81,175.40
  4. Step 4: Simplify right side
    144,833.48x = 16,225,209,071.36
  5. Step 5: Solve for x
    x = 16,225,209,071.36/144,833.48
  6. Step 6: Final answer
    x = 112,026.65

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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.