Home / 128,885.04-177,779.52-93,127.56

Finding the Fourth Proportional to 128,885.04, 177,779.52 and 93,127.56

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Solution

The fourth proportional to 128,885.04, 177,779.52 and 93,127.56 is: 128,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,885.04 : 177,779.52 = 93,127.56 : x
  2. Step 2: Convert to fraction form
    128,885.04/177,779.52 = 93,127.56/x
  3. Step 3: Cross multiply
    128,885.04x = 177,779.52 × 93,127.56
  4. Step 4: Simplify right side
    128,885.04x = 16,556,172,915.57
  5. Step 5: Solve for x
    x = 16,556,172,915.57/128,885.04
  6. Step 6: Final answer
    x = 128,456.90

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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.