Home / 372,019.63-557,895.65-128,794.66

Finding the Fourth Proportional to 372,019.63, 557,895.65 and 128,794.66

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Solution

The fourth proportional to 372,019.63, 557,895.65 and 128,794.66 is: 193,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,019.63 : 557,895.65 = 128,794.66 : x
  2. Step 2: Convert to fraction form
    372,019.63/557,895.65 = 128,794.66/x
  3. Step 3: Cross multiply
    372,019.63x = 557,895.65 × 128,794.66
  4. Step 4: Simplify right side
    372,019.63x = 71,853,980,557.23
  5. Step 5: Solve for x
    x = 71,853,980,557.23/372,019.63
  6. Step 6: Final answer
    x = 193,145.67

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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.