Home / 159,033.02-219,466.05-87,420.38

Finding the Fourth Proportional to 159,033.02, 219,466.05 and 87,420.38

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Solution

The fourth proportional to 159,033.02, 219,466.05 and 87,420.38 is: 120,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,033.02 : 219,466.05 = 87,420.38 : x
  2. Step 2: Convert to fraction form
    159,033.02/219,466.05 = 87,420.38/x
  3. Step 3: Cross multiply
    159,033.02x = 219,466.05 × 87,420.38
  4. Step 4: Simplify right side
    159,033.02x = 19,185,806,036.76
  5. Step 5: Solve for x
    x = 19,185,806,036.76/159,033.02
  6. Step 6: Final answer
    x = 120,640.39

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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.