Home / 111,430.56-153,752.24-66,100.08

Finding the Fourth Proportional to 111,430.56, 153,752.24 and 66,100.08

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Solution

The fourth proportional to 111,430.56, 153,752.24 and 66,100.08 is: 91,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,430.56 : 153,752.24 = 66,100.08 : x
  2. Step 2: Convert to fraction form
    111,430.56/153,752.24 = 66,100.08/x
  3. Step 3: Cross multiply
    111,430.56x = 153,752.24 × 66,100.08
  4. Step 4: Simplify right side
    111,430.56x = 10,163,035,364.18
  5. Step 5: Solve for x
    x = 10,163,035,364.18/111,430.56
  6. Step 6: Final answer
    x = 91,205.10

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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.