Home / 159,535.44-220,148.49-87,915.45

Finding the Fourth Proportional to 159,535.44, 220,148.49 and 87,915.45

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Solution

The fourth proportional to 159,535.44, 220,148.49 and 87,915.45 is: 121,317.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,535.44 : 220,148.49 = 87,915.45 : x
  2. Step 2: Convert to fraction form
    159,535.44/220,148.49 = 87,915.45/x
  3. Step 3: Cross multiply
    159,535.44x = 220,148.49 × 87,915.45
  4. Step 4: Simplify right side
    159,535.44x = 19,354,453,565.17
  5. Step 5: Solve for x
    x = 19,354,453,565.17/159,535.44
  6. Step 6: Final answer
    x = 121,317.58

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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.