Home / 216,637.93-298,964.28-121,142.58

Finding the Fourth Proportional to 216,637.93, 298,964.28 and 121,142.58

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Solution

The fourth proportional to 216,637.93, 298,964.28 and 121,142.58 is: 167,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,637.93 : 298,964.28 = 121,142.58 : x
  2. Step 2: Convert to fraction form
    216,637.93/298,964.28 = 121,142.58/x
  3. Step 3: Cross multiply
    216,637.93x = 298,964.28 × 121,142.58
  4. Step 4: Simplify right side
    216,637.93x = 36,217,304,207.04
  5. Step 5: Solve for x
    x = 36,217,304,207.04/216,637.93
  6. Step 6: Final answer
    x = 167,178.96

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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.