Home / 219,476.60-302,902.29-123,989.45

Finding the Fourth Proportional to 219,476.60, 302,902.29 and 123,989.45

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Solution

The fourth proportional to 219,476.60, 302,902.29 and 123,989.45 is: 171,119.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,476.60 : 302,902.29 = 123,989.45 : x
  2. Step 2: Convert to fraction form
    219,476.60/302,902.29 = 123,989.45/x
  3. Step 3: Cross multiply
    219,476.60x = 302,902.29 × 123,989.45
  4. Step 4: Simplify right side
    219,476.60x = 37,556,688,340.84
  5. Step 5: Solve for x
    x = 37,556,688,340.84/219,476.60
  6. Step 6: Final answer
    x = 171,119.33

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1.5x scale

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.