Home / 104,405.36-144,077.86-61,389.71

Finding the Fourth Proportional to 104,405.36, 144,077.86 and 61,389.71

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Solution

The fourth proportional to 104,405.36, 144,077.86 and 61,389.71 is: 84,716.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,405.36 : 144,077.86 = 61,389.71 : x
  2. Step 2: Convert to fraction form
    104,405.36/144,077.86 = 61,389.71/x
  3. Step 3: Cross multiply
    104,405.36x = 144,077.86 × 61,389.71
  4. Step 4: Simplify right side
    104,405.36x = 8,844,897,168.96
  5. Step 5: Solve for x
    x = 8,844,897,168.96/104,405.36
  6. Step 6: Final answer
    x = 84,716.89

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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.