Home / 243,335.13-365,002.69-77,123.13

Finding the Fourth Proportional to 243,335.13, 365,002.69 and 77,123.13

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Solution

The fourth proportional to 243,335.13, 365,002.69 and 77,123.13 is: 115,684.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,335.13 : 365,002.69 = 77,123.13 : x
  2. Step 2: Convert to fraction form
    243,335.13/365,002.69 = 77,123.13/x
  3. Step 3: Cross multiply
    243,335.13x = 365,002.69 × 77,123.13
  4. Step 4: Simplify right side
    243,335.13x = 28,150,149,911.22
  5. Step 5: Solve for x
    x = 28,150,149,911.22/243,335.13
  6. Step 6: Final answer
    x = 115,684.69

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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.