Home / 102,985,235.56-142,121,080.74-56,579,778.28

Finding the Fourth Proportional to 102,985,235.56, 142,121,080.74 and 56,579,778.28

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Solution

The fourth proportional to 102,985,235.56, 142,121,080.74 and 56,579,778.28 is: 78,080,893.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,985,235.56 : 142,121,080.74 = 56,579,778.28 : x
  2. Step 2: Convert to fraction form
    102,985,235.56/142,121,080.74 = 56,579,778.28/x
  3. Step 3: Cross multiply
    102,985,235.56x = 142,121,080.74 × 56,579,778.28
  4. Step 4: Simplify right side
    102,985,235.56x = 8,041,179,237,183,179
  5. Step 5: Solve for x
    x = 8,041,179,237,183,179/102,985,235.56
  6. Step 6: Final answer
    x = 78,080,893.77

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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.