Home / 147,779.09-221,699.78-47,931.51

Finding the Fourth Proportional to 147,779.09, 221,699.78 and 47,931.51

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Solution

The fourth proportional to 147,779.09, 221,699.78 and 47,931.51 is: 71,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,779.09 : 221,699.78 = 47,931.51 : x
  2. Step 2: Convert to fraction form
    147,779.09/221,699.78 = 47,931.51/x
  3. Step 3: Cross multiply
    147,779.09x = 221,699.78 × 47,931.51
  4. Step 4: Simplify right side
    147,779.09x = 10,626,404,982.41
  5. Step 5: Solve for x
    x = 10,626,404,982.41/147,779.09
  6. Step 6: Final answer
    x = 71,907.37

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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.