Home / 154,628.04-213,383.06-90,969.92

Finding the Fourth Proportional to 154,628.04, 213,383.06 and 90,969.92

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Solution

The fourth proportional to 154,628.04, 213,383.06 and 90,969.92 is: 125,536.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,628.04 : 213,383.06 = 90,969.92 : x
  2. Step 2: Convert to fraction form
    154,628.04/213,383.06 = 90,969.92/x
  3. Step 3: Cross multiply
    154,628.04x = 213,383.06 × 90,969.92
  4. Step 4: Simplify right side
    154,628.04x = 19,411,439,897.56
  5. Step 5: Solve for x
    x = 19,411,439,897.56/154,628.04
  6. Step 6: Final answer
    x = 125,536.35

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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.