Home / 99,898.04-149,920.80-47,307.44

Finding the Fourth Proportional to 99,898.04, 149,920.80 and 47,307.44

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Solution

The fourth proportional to 99,898.04, 149,920.80 and 47,307.44 is: 70,996.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,898.04 : 149,920.80 = 47,307.44 : x
  2. Step 2: Convert to fraction form
    99,898.04/149,920.80 = 47,307.44/x
  3. Step 3: Cross multiply
    99,898.04x = 149,920.80 × 47,307.44
  4. Step 4: Simplify right side
    99,898.04x = 7,092,369,250.75
  5. Step 5: Solve for x
    x = 7,092,369,250.75/99,898.04
  6. Step 6: Final answer
    x = 70,996.08

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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.