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Finding the Fourth Proportional to 113,779, 157,022.58 and 63,479.08

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Solution

The fourth proportional to 113,779, 157,022.58 and 63,479.08 is: 87,605.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,779 : 157,022.58 = 63,479.08 : x
  2. Step 2: Convert to fraction form
    113,779/157,022.58 = 63,479.08/x
  3. Step 3: Cross multiply
    113,779x = 157,022.58 × 63,479.08
  4. Step 4: Simplify right side
    113,779x = 9,967,648,917.63
  5. Step 5: Solve for x
    x = 9,967,648,917.63/113,779
  6. Step 6: Final answer
    x = 87,605.35

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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.