Home / 111,510.04-153,873.60-66,180.22

Finding the Fourth Proportional to 111,510.04, 153,873.60 and 66,180.22

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Solution

The fourth proportional to 111,510.04, 153,873.60 and 66,180.22 is: 91,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,510.04 : 153,873.60 = 66,180.22 : x
  2. Step 2: Convert to fraction form
    111,510.04/153,873.60 = 66,180.22/x
  3. Step 3: Cross multiply
    111,510.04x = 153,873.60 × 66,180.22
  4. Step 4: Simplify right side
    111,510.04x = 10,183,388,700.19
  5. Step 5: Solve for x
    x = 10,183,388,700.19/111,510.04
  6. Step 6: Final answer
    x = 91,322.62

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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.