Home / 111,453.36-153,798.12-61,155.60

Finding the Fourth Proportional to 111,453.36, 153,798.12 and 61,155.60

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Solution

The fourth proportional to 111,453.36, 153,798.12 and 61,155.60 is: 84,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,453.36 : 153,798.12 = 61,155.60 : x
  2. Step 2: Convert to fraction form
    111,453.36/153,798.12 = 61,155.60/x
  3. Step 3: Cross multiply
    111,453.36x = 153,798.12 × 61,155.60
  4. Step 4: Simplify right side
    111,453.36x = 9,405,616,307.47
  5. Step 5: Solve for x
    x = 9,405,616,307.47/111,453.36
  6. Step 6: Final answer
    x = 84,390.60

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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.