Home / 145,896.12-218,464.56-124,970.40

Finding the Fourth Proportional to 145,896.12, 218,464.56 and 124,970.40

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Solution

The fourth proportional to 145,896.12, 218,464.56 and 124,970.40 is: 187,130.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,896.12 : 218,464.56 = 124,970.40 : x
  2. Step 2: Convert to fraction form
    145,896.12/218,464.56 = 124,970.40/x
  3. Step 3: Cross multiply
    145,896.12x = 218,464.56 × 124,970.40
  4. Step 4: Simplify right side
    145,896.12x = 27,301,603,449.02
  5. Step 5: Solve for x
    x = 27,301,603,449.02/145,896.12
  6. Step 6: Final answer
    x = 187,130.43

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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.