Home / 243,204.04-364,842.48-85,404.68

Finding the Fourth Proportional to 243,204.04, 364,842.48 and 85,404.68

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Solution

The fourth proportional to 243,204.04, 364,842.48 and 85,404.68 is: 128,119.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,204.04 : 364,842.48 = 85,404.68 : x
  2. Step 2: Convert to fraction form
    243,204.04/364,842.48 = 85,404.68/x
  3. Step 3: Cross multiply
    243,204.04x = 364,842.48 × 85,404.68
  4. Step 4: Simplify right side
    243,204.04x = 31,159,255,254.81
  5. Step 5: Solve for x
    x = 31,159,255,254.81/243,204.04
  6. Step 6: Final answer
    x = 128,119.81

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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.