Home / 181,002.84-249,780.09-100,428.63

Finding the Fourth Proportional to 181,002.84, 249,780.09 and 100,428.63

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Solution

The fourth proportional to 181,002.84, 249,780.09 and 100,428.63 is: 138,589.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,002.84 : 249,780.09 = 100,428.63 : x
  2. Step 2: Convert to fraction form
    181,002.84/249,780.09 = 100,428.63/x
  3. Step 3: Cross multiply
    181,002.84x = 249,780.09 × 100,428.63
  4. Step 4: Simplify right side
    181,002.84x = 25,085,072,239.98
  5. Step 5: Solve for x
    x = 25,085,072,239.98/181,002.84
  6. Step 6: Final answer
    x = 138,589.38

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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.