Home / 121,521.60-182,282.40-116,272.80

Finding the Fourth Proportional to 121,521.60, 182,282.40 and 116,272.80

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Solution

The fourth proportional to 121,521.60, 182,282.40 and 116,272.80 is: 174,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,521.60 : 182,282.40 = 116,272.80 : x
  2. Step 2: Convert to fraction form
    121,521.60/182,282.40 = 116,272.80/x
  3. Step 3: Cross multiply
    121,521.60x = 182,282.40 × 116,272.80
  4. Step 4: Simplify right side
    121,521.60x = 21,194,485,038.72
  5. Step 5: Solve for x
    x = 21,194,485,038.72/121,521.60
  6. Step 6: Final answer
    x = 174,409.20

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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.