Home / 155,006.24-213,893.81-87,007.62

Finding the Fourth Proportional to 155,006.24, 213,893.81 and 87,007.62

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Solution

The fourth proportional to 155,006.24, 213,893.81 and 87,007.62 is: 120,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,006.24 : 213,893.81 = 87,007.62 : x
  2. Step 2: Convert to fraction form
    155,006.24/213,893.81 = 87,007.62/x
  3. Step 3: Cross multiply
    155,006.24x = 213,893.81 × 87,007.62
  4. Step 4: Simplify right side
    155,006.24x = 18,610,390,905.79
  5. Step 5: Solve for x
    x = 18,610,390,905.79/155,006.24
  6. Step 6: Final answer
    x = 120,062.21

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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.