Home / 91,704.84-137,354.04-70,488.66

Finding the Fourth Proportional to 91,704.84, 137,354.04 and 70,488.66

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Solution

The fourth proportional to 91,704.84, 137,354.04 and 70,488.66 is: 105,576.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,704.84 : 137,354.04 = 70,488.66 : x
  2. Step 2: Convert to fraction form
    91,704.84/137,354.04 = 70,488.66/x
  3. Step 3: Cross multiply
    91,704.84x = 137,354.04 × 70,488.66
  4. Step 4: Simplify right side
    91,704.84x = 9,681,902,225.19
  5. Step 5: Solve for x
    x = 9,681,902,225.19/91,704.84
  6. Step 6: Final answer
    x = 105,576.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.