Home / 115,173.96-172,834.80-79,531.32

Finding the Fourth Proportional to 115,173.96, 172,834.80 and 79,531.32

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Solution

The fourth proportional to 115,173.96, 172,834.80 and 79,531.32 is: 119,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,173.96 : 172,834.80 = 79,531.32 : x
  2. Step 2: Convert to fraction form
    115,173.96/172,834.80 = 79,531.32/x
  3. Step 3: Cross multiply
    115,173.96x = 172,834.80 × 79,531.32
  4. Step 4: Simplify right side
    115,173.96x = 13,745,779,785.94
  5. Step 5: Solve for x
    x = 13,745,779,785.94/115,173.96
  6. Step 6: Final answer
    x = 119,347.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.