Home / 286,062.24-428,996.16-99,030

Finding the Fourth Proportional to 286,062.24, 428,996.16 and 99,030

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Solution

The fourth proportional to 286,062.24, 428,996.16 and 99,030 is: 148,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,062.24 : 428,996.16 = 99,030 : x
  2. Step 2: Convert to fraction form
    286,062.24/428,996.16 = 99,030/x
  3. Step 3: Cross multiply
    286,062.24x = 428,996.16 × 99,030
  4. Step 4: Simplify right side
    286,062.24x = 42,483,489,724.80
  5. Step 5: Solve for x
    x = 42,483,489,724.80/286,062.24
  6. Step 6: Final answer
    x = 148,511.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.