Home / 111,122.48-153,349.02-60,135.21

Finding the Fourth Proportional to 111,122.48, 153,349.02 and 60,135.21

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Solution

The fourth proportional to 111,122.48, 153,349.02 and 60,135.21 is: 82,986.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,122.48 : 153,349.02 = 60,135.21 : x
  2. Step 2: Convert to fraction form
    111,122.48/153,349.02 = 60,135.21/x
  3. Step 3: Cross multiply
    111,122.48x = 153,349.02 × 60,135.21
  4. Step 4: Simplify right side
    111,122.48x = 9,221,674,720.43
  5. Step 5: Solve for x
    x = 9,221,674,720.43/111,122.48
  6. Step 6: Final answer
    x = 82,986.58

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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.