Home / 144,409.07-199,345.17-87,840.11

Finding the Fourth Proportional to 144,409.07, 199,345.17 and 87,840.11

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Solution

The fourth proportional to 144,409.07, 199,345.17 and 87,840.11 is: 121,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,409.07 : 199,345.17 = 87,840.11 : x
  2. Step 2: Convert to fraction form
    144,409.07/199,345.17 = 87,840.11/x
  3. Step 3: Cross multiply
    144,409.07x = 199,345.17 × 87,840.11
  4. Step 4: Simplify right side
    144,409.07x = 17,510,500,664.04
  5. Step 5: Solve for x
    x = 17,510,500,664.04/144,409.07
  6. Step 6: Final answer
    x = 121,256.24

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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.