Home / 139,715.75-193,003.80-124,603.58

Finding the Fourth Proportional to 139,715.75, 193,003.80 and 124,603.58

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Solution

The fourth proportional to 139,715.75, 193,003.80 and 124,603.58 is: 172,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,715.75 : 193,003.80 = 124,603.58 : x
  2. Step 2: Convert to fraction form
    139,715.75/193,003.80 = 124,603.58/x
  3. Step 3: Cross multiply
    139,715.75x = 193,003.80 × 124,603.58
  4. Step 4: Simplify right side
    139,715.75x = 24,048,964,433.60
  5. Step 5: Solve for x
    x = 24,048,964,433.60/139,715.75
  6. Step 6: Final answer
    x = 172,127.80

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1.5x scale

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.