Home / 213,767.79-294,953.60-128,883.03

Finding the Fourth Proportional to 213,767.79, 294,953.60 and 128,883.03

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Solution

The fourth proportional to 213,767.79, 294,953.60 and 128,883.03 is: 177,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,767.79 : 294,953.60 = 128,883.03 : x
  2. Step 2: Convert to fraction form
    213,767.79/294,953.60 = 128,883.03/x
  3. Step 3: Cross multiply
    213,767.79x = 294,953.60 × 128,883.03
  4. Step 4: Simplify right side
    213,767.79x = 38,014,513,032.99
  5. Step 5: Solve for x
    x = 38,014,513,032.99/213,767.79
  6. Step 6: Final answer
    x = 177,830.87

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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.