Home / 147,401.16-203,488.37-86,990.14

Finding the Fourth Proportional to 147,401.16, 203,488.37 and 86,990.14

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Solution

The fourth proportional to 147,401.16, 203,488.37 and 86,990.14 is: 120,090.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,401.16 : 203,488.37 = 86,990.14 : x
  2. Step 2: Convert to fraction form
    147,401.16/203,488.37 = 86,990.14/x
  3. Step 3: Cross multiply
    147,401.16x = 203,488.37 × 86,990.14
  4. Step 4: Simplify right side
    147,401.16x = 17,701,481,794.67
  5. Step 5: Solve for x
    x = 17,701,481,794.67/147,401.16
  6. Step 6: Final answer
    x = 120,090.52

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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.