Home / 115,152.80-172,779.39-40,326.62

Finding the Fourth Proportional to 115,152.80, 172,779.39 and 40,326.62

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Solution

The fourth proportional to 115,152.80, 172,779.39 and 40,326.62 is: 60,507.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,152.80 : 172,779.39 = 40,326.62 : x
  2. Step 2: Convert to fraction form
    115,152.80/172,779.39 = 40,326.62/x
  3. Step 3: Cross multiply
    115,152.80x = 172,779.39 × 40,326.62
  4. Step 4: Simplify right side
    115,152.80x = 6,967,607,940.46
  5. Step 5: Solve for x
    x = 6,967,607,940.46/115,152.80
  6. Step 6: Final answer
    x = 60,507.50

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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.