Home / 140,646.12-210,918.42-47,130.36

Finding the Fourth Proportional to 140,646.12, 210,918.42 and 47,130.36

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Solution

The fourth proportional to 140,646.12, 210,918.42 and 47,130.36 is: 70,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,646.12 : 210,918.42 = 47,130.36 : x
  2. Step 2: Convert to fraction form
    140,646.12/210,918.42 = 47,130.36/x
  3. Step 3: Cross multiply
    140,646.12x = 210,918.42 × 47,130.36
  4. Step 4: Simplify right side
    140,646.12x = 9,940,661,065.23
  5. Step 5: Solve for x
    x = 9,940,661,065.23/140,646.12
  6. Step 6: Final answer
    x = 70,678.53

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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.