Home / 145,966.20-218,603.70-98,964.60

Finding the Fourth Proportional to 145,966.20, 218,603.70 and 98,964.60

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Solution

The fourth proportional to 145,966.20, 218,603.70 and 98,964.60 is: 148,212.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,966.20 : 218,603.70 = 98,964.60 : x
  2. Step 2: Convert to fraction form
    145,966.20/218,603.70 = 98,964.60/x
  3. Step 3: Cross multiply
    145,966.20x = 218,603.70 × 98,964.60
  4. Step 4: Simplify right side
    145,966.20x = 21,634,027,729.02
  5. Step 5: Solve for x
    x = 21,634,027,729.02/145,966.20
  6. Step 6: Final answer
    x = 148,212.58

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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.