Home / 104,001.57-143,602.07-86,199.39

Finding the Fourth Proportional to 104,001.57, 143,602.07 and 86,199.39

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Solution

The fourth proportional to 104,001.57, 143,602.07 and 86,199.39 is: 119,021.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,001.57 : 143,602.07 = 86,199.39 : x
  2. Step 2: Convert to fraction form
    104,001.57/143,602.07 = 86,199.39/x
  3. Step 3: Cross multiply
    104,001.57x = 143,602.07 × 86,199.39
  4. Step 4: Simplify right side
    104,001.57x = 12,378,410,405.74
  5. Step 5: Solve for x
    x = 12,378,410,405.74/104,001.57
  6. Step 6: Final answer
    x = 119,021.38

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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.