Home / 145,527.64-200,827.86-81,865.49

Finding the Fourth Proportional to 145,527.64, 200,827.86 and 81,865.49

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Solution

The fourth proportional to 145,527.64, 200,827.86 and 81,865.49 is: 112,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,527.64 : 200,827.86 = 81,865.49 : x
  2. Step 2: Convert to fraction form
    145,527.64/200,827.86 = 81,865.49/x
  3. Step 3: Cross multiply
    145,527.64x = 200,827.86 × 81,865.49
  4. Step 4: Simplify right side
    145,527.64x = 16,440,869,853.42
  5. Step 5: Solve for x
    x = 16,440,869,853.42/145,527.64
  6. Step 6: Final answer
    x = 112,974.21

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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.