Home / 140,130.49-210,338.79-102,579.10

Finding the Fourth Proportional to 140,130.49, 210,338.79 and 102,579.10

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Solution

The fourth proportional to 140,130.49, 210,338.79 and 102,579.10 is: 153,973.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,130.49 : 210,338.79 = 102,579.10 : x
  2. Step 2: Convert to fraction form
    140,130.49/210,338.79 = 102,579.10/x
  3. Step 3: Cross multiply
    140,130.49x = 210,338.79 × 102,579.10
  4. Step 4: Simplify right side
    140,130.49x = 21,576,363,773.29
  5. Step 5: Solve for x
    x = 21,576,363,773.29/140,130.49
  6. Step 6: Final answer
    x = 153,973.37

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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.