Home / 155,779.58-214,975.92-84,159.57

Finding the Fourth Proportional to 155,779.58, 214,975.92 and 84,159.57

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Solution

The fourth proportional to 155,779.58, 214,975.92 and 84,159.57 is: 116,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,779.58 : 214,975.92 = 84,159.57 : x
  2. Step 2: Convert to fraction form
    155,779.58/214,975.92 = 84,159.57/x
  3. Step 3: Cross multiply
    155,779.58x = 214,975.92 × 84,159.57
  4. Step 4: Simplify right side
    155,779.58x = 18,092,280,987.55
  5. Step 5: Solve for x
    x = 18,092,280,987.55/155,779.58
  6. Step 6: Final answer
    x = 116,140.26

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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.