Home / 102,985,026.48-142,056,299.88-61,140,692.16

Finding the Fourth Proportional to 102,985,026.48, 142,056,299.88 and 61,140,692.16

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Solution

The fourth proportional to 102,985,026.48, 142,056,299.88 and 61,140,692.16 is: 84,336,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,985,026.48 : 142,056,299.88 = 61,140,692.16 : x
  2. Step 2: Convert to fraction form
    102,985,026.48/142,056,299.88 = 61,140,692.16/x
  3. Step 3: Cross multiply
    102,985,026.48x = 142,056,299.88 × 61,140,692.16
  4. Step 4: Simplify right side
    102,985,026.48x = 8,685,420,500,351,724
  5. Step 5: Solve for x
    x = 8,685,420,500,351,724/102,985,026.48
  6. Step 6: Final answer
    x = 84,336,731.24

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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.