Home / 112,768.40-168,666.60-101,007.20

Finding the Fourth Proportional to 112,768.40, 168,666.60 and 101,007.20

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Solution

The fourth proportional to 112,768.40, 168,666.60 and 101,007.20 is: 151,075.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,768.40 : 168,666.60 = 101,007.20 : x
  2. Step 2: Convert to fraction form
    112,768.40/168,666.60 = 101,007.20/x
  3. Step 3: Cross multiply
    112,768.40x = 168,666.60 × 101,007.20
  4. Step 4: Simplify right side
    112,768.40x = 17,036,540,999.52
  5. Step 5: Solve for x
    x = 17,036,540,999.52/112,768.40
  6. Step 6: Final answer
    x = 151,075.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.