Home / 111,142.40-153,375.48-60,154.10

Finding the Fourth Proportional to 111,142.40, 153,375.48 and 60,154.10

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Solution

The fourth proportional to 111,142.40, 153,375.48 and 60,154.10 is: 83,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,142.40 : 153,375.48 = 60,154.10 : x
  2. Step 2: Convert to fraction form
    111,142.40/153,375.48 = 60,154.10/x
  3. Step 3: Cross multiply
    111,142.40x = 153,375.48 × 60,154.10
  4. Step 4: Simplify right side
    111,142.40x = 9,226,163,961.47
  5. Step 5: Solve for x
    x = 9,226,163,961.47/111,142.40
  6. Step 6: Final answer
    x = 83,012.10

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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.