Home / 111,516.16-153,890.40-61,214.08

Finding the Fourth Proportional to 111,516.16, 153,890.40 and 61,214.08

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Solution

The fourth proportional to 111,516.16, 153,890.40 and 61,214.08 is: 84,474.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,516.16 : 153,890.40 = 61,214.08 : x
  2. Step 2: Convert to fraction form
    111,516.16/153,890.40 = 61,214.08/x
  3. Step 3: Cross multiply
    111,516.16x = 153,890.40 × 61,214.08
  4. Step 4: Simplify right side
    111,516.16x = 9,420,259,256.83
  5. Step 5: Solve for x
    x = 9,420,259,256.83/111,516.16
  6. Step 6: Final answer
    x = 84,474.39

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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.