Home / 121,582.40-182,488.80-74,926.40

Finding the Fourth Proportional to 121,582.40, 182,488.80 and 74,926.40

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Solution

The fourth proportional to 121,582.40, 182,488.80 and 74,926.40 is: 112,460.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,582.40 : 182,488.80 = 74,926.40 : x
  2. Step 2: Convert to fraction form
    121,582.40/182,488.80 = 74,926.40/x
  3. Step 3: Cross multiply
    121,582.40x = 182,488.80 × 74,926.40
  4. Step 4: Simplify right side
    121,582.40x = 13,673,228,824.32
  5. Step 5: Solve for x
    x = 13,673,228,824.32/121,582.40
  6. Step 6: Final answer
    x = 112,460.59

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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.