Home / 219,420.39-328,861.28-124,729.89

Finding the Fourth Proportional to 219,420.39, 328,861.28 and 124,729.89

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Solution

The fourth proportional to 219,420.39, 328,861.28 and 124,729.89 is: 186,941.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,420.39 : 328,861.28 = 124,729.89 : x
  2. Step 2: Convert to fraction form
    219,420.39/328,861.28 = 124,729.89/x
  3. Step 3: Cross multiply
    219,420.39x = 328,861.28 × 124,729.89
  4. Step 4: Simplify right side
    219,420.39x = 41,018,830,656.01
  5. Step 5: Solve for x
    x = 41,018,830,656.01/219,420.39
  6. Step 6: Final answer
    x = 186,941.75

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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.