Home / 103,170,885.85-142,375,817.69-56,760,143.32

Finding the Fourth Proportional to 103,170,885.85, 142,375,817.69 and 56,760,143.32

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Solution

The fourth proportional to 103,170,885.85, 142,375,817.69 and 56,760,143.32 is: 78,328,995.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,170,885.85 : 142,375,817.69 = 56,760,143.32 : x
  2. Step 2: Convert to fraction form
    103,170,885.85/142,375,817.69 = 56,760,143.32/x
  3. Step 3: Cross multiply
    103,170,885.85x = 142,375,817.69 × 56,760,143.32
  4. Step 4: Simplify right side
    103,170,885.85x = 8,081,271,817,386,591
  5. Step 5: Solve for x
    x = 8,081,271,817,386,591/103,170,885.85
  6. Step 6: Final answer
    x = 78,328,995.15

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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.