Home / 245,815.15-368,837.54-127,421.89

Finding the Fourth Proportional to 245,815.15, 368,837.54 and 127,421.89

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Solution

The fourth proportional to 245,815.15, 368,837.54 and 127,421.89 is: 191,192.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,815.15 : 368,837.54 = 127,421.89 : x
  2. Step 2: Convert to fraction form
    245,815.15/368,837.54 = 127,421.89/x
  3. Step 3: Cross multiply
    245,815.15x = 368,837.54 × 127,421.89
  4. Step 4: Simplify right side
    245,815.15x = 46,997,975,812.64
  5. Step 5: Solve for x
    x = 46,997,975,812.64/245,815.15
  6. Step 6: Final answer
    x = 191,192.35

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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.