Home / 125,214.72-187,782.39-40,955.40

Finding the Fourth Proportional to 125,214.72, 187,782.39 and 40,955.40

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Solution

The fourth proportional to 125,214.72, 187,782.39 and 40,955.40 is: 61,420.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,214.72 : 187,782.39 = 40,955.40 : x
  2. Step 2: Convert to fraction form
    125,214.72/187,782.39 = 40,955.40/x
  3. Step 3: Cross multiply
    125,214.72x = 187,782.39 × 40,955.40
  4. Step 4: Simplify right side
    125,214.72x = 7,690,702,895.41
  5. Step 5: Solve for x
    x = 7,690,702,895.41/125,214.72
  6. Step 6: Final answer
    x = 61,420.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.