Home / 97,306.20-145,844.10-72,653.40

Finding the Fourth Proportional to 97,306.20, 145,844.10 and 72,653.40

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Solution

The fourth proportional to 97,306.20, 145,844.10 and 72,653.40 is: 108,894.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,306.20 : 145,844.10 = 72,653.40 : x
  2. Step 2: Convert to fraction form
    97,306.20/145,844.10 = 72,653.40/x
  3. Step 3: Cross multiply
    97,306.20x = 145,844.10 × 72,653.40
  4. Step 4: Simplify right side
    97,306.20x = 10,596,069,734.94
  5. Step 5: Solve for x
    x = 10,596,069,734.94/97,306.20
  6. Step 6: Final answer
    x = 108,894.09

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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.