Home / 103,817,710.72-143,220,820.80-67,160,103.04

Finding the Fourth Proportional to 103,817,710.72, 143,220,820.80 and 67,160,103.04

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Solution

The fourth proportional to 103,817,710.72, 143,220,820.80 and 67,160,103.04 is: 92,650,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,817,710.72 : 143,220,820.80 = 67,160,103.04 : x
  2. Step 2: Convert to fraction form
    103,817,710.72/143,220,820.80 = 67,160,103.04/x
  3. Step 3: Cross multiply
    103,817,710.72x = 143,220,820.80 × 67,160,103.04
  4. Step 4: Simplify right side
    103,817,710.72x = 9,618,725,082,401,376
  5. Step 5: Solve for x
    x = 9,618,725,082,401,376/103,817,710.72
  6. Step 6: Final answer
    x = 92,650,136.63

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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.