Home / 121,767.78-182,666.31-42,865.62

Finding the Fourth Proportional to 121,767.78, 182,666.31 and 42,865.62

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Solution

The fourth proportional to 121,767.78, 182,666.31 and 42,865.62 is: 64,303.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,767.78 : 182,666.31 = 42,865.62 : x
  2. Step 2: Convert to fraction form
    121,767.78/182,666.31 = 42,865.62/x
  3. Step 3: Cross multiply
    121,767.78x = 182,666.31 × 42,865.62
  4. Step 4: Simplify right side
    121,767.78x = 7,830,104,631.26
  5. Step 5: Solve for x
    x = 7,830,104,631.26/121,767.78
  6. Step 6: Final answer
    x = 64,303.58

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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.