Home / 114,818.90-158,527.40-102,681.72

Finding the Fourth Proportional to 114,818.90, 158,527.40 and 102,681.72

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Solution

The fourth proportional to 114,818.90, 158,527.40 and 102,681.72 is: 141,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,818.90 : 158,527.40 = 102,681.72 : x
  2. Step 2: Convert to fraction form
    114,818.90/158,527.40 = 102,681.72/x
  3. Step 3: Cross multiply
    114,818.90x = 158,527.40 × 102,681.72
  4. Step 4: Simplify right side
    114,818.90x = 16,277,865,585.72
  5. Step 5: Solve for x
    x = 16,277,865,585.72/114,818.90
  6. Step 6: Final answer
    x = 141,769.92

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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.