Home / 219,475.07-302,900.18-123,987.92

Finding the Fourth Proportional to 219,475.07, 302,900.18 and 123,987.92

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Solution

The fourth proportional to 219,475.07, 302,900.18 and 123,987.92 is: 171,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,475.07 : 302,900.18 = 123,987.92 : x
  2. Step 2: Convert to fraction form
    219,475.07/302,900.18 = 123,987.92/x
  3. Step 3: Cross multiply
    219,475.07x = 302,900.18 × 123,987.92
  4. Step 4: Simplify right side
    219,475.07x = 37,555,961,151.39
  5. Step 5: Solve for x
    x = 37,555,961,151.39/219,475.07
  6. Step 6: Final answer
    x = 171,117.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.