Home / 139,945.04-193,118.40-76,281.44

Finding the Fourth Proportional to 139,945.04, 193,118.40 and 76,281.44

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Solution

The fourth proportional to 139,945.04, 193,118.40 and 76,281.44 is: 105,265.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,945.04 : 193,118.40 = 76,281.44 : x
  2. Step 2: Convert to fraction form
    139,945.04/193,118.40 = 76,281.44/x
  3. Step 3: Cross multiply
    139,945.04x = 193,118.40 × 76,281.44
  4. Step 4: Simplify right side
    139,945.04x = 14,731,349,642.50
  5. Step 5: Solve for x
    x = 14,731,349,642.50/139,945.04
  6. Step 6: Final answer
    x = 105,265.25

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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.