Home / 121,547.68-182,403.06-42,662.14

Finding the Fourth Proportional to 121,547.68, 182,403.06 and 42,662.14

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Solution

The fourth proportional to 121,547.68, 182,403.06 and 42,662.14 is: 64,021.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,547.68 : 182,403.06 = 42,662.14 : x
  2. Step 2: Convert to fraction form
    121,547.68/182,403.06 = 42,662.14/x
  3. Step 3: Cross multiply
    121,547.68x = 182,403.06 × 42,662.14
  4. Step 4: Simplify right side
    121,547.68x = 7,781,704,882.15
  5. Step 5: Solve for x
    x = 7,781,704,882.15/121,547.68
  6. Step 6: Final answer
    x = 64,021.83

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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.