Home / 155,580.33-214,683.10-87,595.55

Finding the Fourth Proportional to 155,580.33, 214,683.10 and 87,595.55

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Solution

The fourth proportional to 155,580.33, 214,683.10 and 87,595.55 is: 120,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,580.33 : 214,683.10 = 87,595.55 : x
  2. Step 2: Convert to fraction form
    155,580.33/214,683.10 = 87,595.55/x
  3. Step 3: Cross multiply
    155,580.33x = 214,683.10 × 87,595.55
  4. Step 4: Simplify right side
    155,580.33x = 18,805,284,225.59
  5. Step 5: Solve for x
    x = 18,805,284,225.59/155,580.33
  6. Step 6: Final answer
    x = 120,871.86

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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.