Home / 99,692.10-137,583.23-56,685.08

Finding the Fourth Proportional to 99,692.10, 137,583.23 and 56,685.08

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Solution

The fourth proportional to 99,692.10, 137,583.23 and 56,685.08 is: 78,230.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,692.10 : 137,583.23 = 56,685.08 : x
  2. Step 2: Convert to fraction form
    99,692.10/137,583.23 = 56,685.08/x
  3. Step 3: Cross multiply
    99,692.10x = 137,583.23 × 56,685.08
  4. Step 4: Simplify right side
    99,692.10x = 7,798,916,459.74
  5. Step 5: Solve for x
    x = 7,798,916,459.74/99,692.10
  6. Step 6: Final answer
    x = 78,230.03

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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.