Home / 125,172.08-187,738.68-40,931.60

Finding the Fourth Proportional to 125,172.08, 187,738.68 and 40,931.60

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Solution

The fourth proportional to 125,172.08, 187,738.68 and 40,931.60 is: 61,391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,172.08 : 187,738.68 = 40,931.60 : x
  2. Step 2: Convert to fraction form
    125,172.08/187,738.68 = 40,931.60/x
  3. Step 3: Cross multiply
    125,172.08x = 187,738.68 × 40,931.60
  4. Step 4: Simplify right side
    125,172.08x = 7,684,444,554.29
  5. Step 5: Solve for x
    x = 7,684,444,554.29/125,172.08
  6. Step 6: Final answer
    x = 61,391.04

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1.5x scale

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.