Home / 111,419.04-153,708.51-66,098.95

Finding the Fourth Proportional to 111,419.04, 153,708.51 and 66,098.95

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Solution

The fourth proportional to 111,419.04, 153,708.51 and 66,098.95 is: 91,187.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,419.04 : 153,708.51 = 66,098.95 : x
  2. Step 2: Convert to fraction form
    111,419.04/153,708.51 = 66,098.95/x
  3. Step 3: Cross multiply
    111,419.04x = 153,708.51 × 66,098.95
  4. Step 4: Simplify right side
    111,419.04x = 10,159,971,117.06
  5. Step 5: Solve for x
    x = 10,159,971,117.06/111,419.04
  6. Step 6: Final answer
    x = 91,187.03

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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.