Home / 158,903.16-219,232.05-90,895.35

Finding the Fourth Proportional to 158,903.16, 219,232.05 and 90,895.35

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Solution

The fourth proportional to 158,903.16, 219,232.05 and 90,895.35 is: 125,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,903.16 : 219,232.05 = 90,895.35 : x
  2. Step 2: Convert to fraction form
    158,903.16/219,232.05 = 90,895.35/x
  3. Step 3: Cross multiply
    158,903.16x = 219,232.05 × 90,895.35
  4. Step 4: Simplify right side
    158,903.16x = 19,927,173,915.97
  5. Step 5: Solve for x
    x = 19,927,173,915.97/158,903.16
  6. Step 6: Final answer
    x = 125,404.52

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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.