Home / 223,133.81-307,919.48-121,159.53

Finding the Fourth Proportional to 223,133.81, 307,919.48 and 121,159.53

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Solution

The fourth proportional to 223,133.81, 307,919.48 and 121,159.53 is: 167,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,133.81 : 307,919.48 = 121,159.53 : x
  2. Step 2: Convert to fraction form
    223,133.81/307,919.48 = 121,159.53/x
  3. Step 3: Cross multiply
    223,133.81x = 307,919.48 × 121,159.53
  4. Step 4: Simplify right side
    223,133.81x = 37,307,378,868.85
  5. Step 5: Solve for x
    x = 37,307,378,868.85/223,133.81
  6. Step 6: Final answer
    x = 167,197.34

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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.