Home / 111,438.24-153,779.76-61,136.16

Finding the Fourth Proportional to 111,438.24, 153,779.76 and 61,136.16

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Solution

The fourth proportional to 111,438.24, 153,779.76 and 61,136.16 is: 84,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,438.24 : 153,779.76 = 61,136.16 : x
  2. Step 2: Convert to fraction form
    111,438.24/153,779.76 = 61,136.16/x
  3. Step 3: Cross multiply
    111,438.24x = 153,779.76 × 61,136.16
  4. Step 4: Simplify right side
    111,438.24x = 9,401,504,012.12
  5. Step 5: Solve for x
    x = 9,401,504,012.12/111,438.24
  6. Step 6: Final answer
    x = 84,365.15

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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.