Home / 319,785.81-479,595.15-95,085.75

Finding the Fourth Proportional to 319,785.81, 479,595.15 and 95,085.75

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Solution

The fourth proportional to 319,785.81, 479,595.15 and 95,085.75 is: 142,603.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,785.81 : 479,595.15 = 95,085.75 : x
  2. Step 2: Convert to fraction form
    319,785.81/479,595.15 = 95,085.75/x
  3. Step 3: Cross multiply
    319,785.81x = 479,595.15 × 95,085.75
  4. Step 4: Simplify right side
    319,785.81x = 45,602,664,534.11
  5. Step 5: Solve for x
    x = 45,602,664,534.11/319,785.81
  6. Step 6: Final answer
    x = 142,603.78

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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.