Home / 158,915.04-219,307.68-87,293.76

Finding the Fourth Proportional to 158,915.04, 219,307.68 and 87,293.76

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Solution

The fourth proportional to 158,915.04, 219,307.68 and 87,293.76 is: 120,468.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,915.04 : 219,307.68 = 87,293.76 : x
  2. Step 2: Convert to fraction form
    158,915.04/219,307.68 = 87,293.76/x
  3. Step 3: Cross multiply
    158,915.04x = 219,307.68 × 87,293.76
  4. Step 4: Simplify right side
    158,915.04x = 19,144,191,984.08
  5. Step 5: Solve for x
    x = 19,144,191,984.08/158,915.04
  6. Step 6: Final answer
    x = 120,468.09

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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.