Home / 115,909.38-173,779.02-36,978.12

Finding the Fourth Proportional to 115,909.38, 173,779.02 and 36,978.12

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Solution

The fourth proportional to 115,909.38, 173,779.02 and 36,978.12 is: 55,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,909.38 : 173,779.02 = 36,978.12 : x
  2. Step 2: Convert to fraction form
    115,909.38/173,779.02 = 36,978.12/x
  3. Step 3: Cross multiply
    115,909.38x = 173,779.02 × 36,978.12
  4. Step 4: Simplify right side
    115,909.38x = 6,426,021,455.04
  5. Step 5: Solve for x
    x = 6,426,021,455.04/115,909.38
  6. Step 6: Final answer
    x = 55,440.05

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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.