Home / 111,220.12-153,485.76-60,915.88

Finding the Fourth Proportional to 111,220.12, 153,485.76 and 60,915.88

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Solution

The fourth proportional to 111,220.12, 153,485.76 and 60,915.88 is: 84,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,220.12 : 153,485.76 = 60,915.88 : x
  2. Step 2: Convert to fraction form
    111,220.12/153,485.76 = 60,915.88/x
  3. Step 3: Cross multiply
    111,220.12x = 153,485.76 × 60,915.88
  4. Step 4: Simplify right side
    111,220.12x = 9,349,720,137.87
  5. Step 5: Solve for x
    x = 9,349,720,137.87/111,220.12
  6. Step 6: Final answer
    x = 84,065.01

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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.