Home / 155,467.10-214,545.51-87,485.21

Finding the Fourth Proportional to 155,467.10, 214,545.51 and 87,485.21

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Solution

The fourth proportional to 155,467.10, 214,545.51 and 87,485.21 is: 120,730.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,467.10 : 214,545.51 = 87,485.21 : x
  2. Step 2: Convert to fraction form
    155,467.10/214,545.51 = 87,485.21/x
  3. Step 3: Cross multiply
    155,467.10x = 214,545.51 × 87,485.21
  4. Step 4: Simplify right side
    155,467.10x = 18,769,557,924.18
  5. Step 5: Solve for x
    x = 18,769,557,924.18/155,467.10
  6. Step 6: Final answer
    x = 120,730.10

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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.