Home / 125,181.12-186,655.08-111,271.80

Finding the Fourth Proportional to 125,181.12, 186,655.08 and 111,271.80

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Solution

The fourth proportional to 125,181.12, 186,655.08 and 111,271.80 is: 165,915.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,181.12 : 186,655.08 = 111,271.80 : x
  2. Step 2: Convert to fraction form
    125,181.12/186,655.08 = 111,271.80/x
  3. Step 3: Cross multiply
    125,181.12x = 186,655.08 × 111,271.80
  4. Step 4: Simplify right side
    125,181.12x = 20,769,446,730.74
  5. Step 5: Solve for x
    x = 20,769,446,730.74/125,181.12
  6. Step 6: Final answer
    x = 165,915.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.