Home / 121,739.84-182,603.40-42,854.60

Finding the Fourth Proportional to 121,739.84, 182,603.40 and 42,854.60

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Solution

The fourth proportional to 121,739.84, 182,603.40 and 42,854.60 is: 64,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,739.84 : 182,603.40 = 42,854.60 : x
  2. Step 2: Convert to fraction form
    121,739.84/182,603.40 = 42,854.60/x
  3. Step 3: Cross multiply
    121,739.84x = 182,603.40 × 42,854.60
  4. Step 4: Simplify right side
    121,739.84x = 7,825,395,665.64
  5. Step 5: Solve for x
    x = 7,825,395,665.64/121,739.84
  6. Step 6: Final answer
    x = 64,279.66

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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.