Home / 125,000.04-172,510.38-71,287.32

Finding the Fourth Proportional to 125,000.04, 172,510.38 and 71,287.32

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Solution

The fourth proportional to 125,000.04, 172,510.38 and 71,287.32 is: 98,382.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,000.04 : 172,510.38 = 71,287.32 : x
  2. Step 2: Convert to fraction form
    125,000.04/172,510.38 = 71,287.32/x
  3. Step 3: Cross multiply
    125,000.04x = 172,510.38 × 71,287.32
  4. Step 4: Simplify right side
    125,000.04x = 12,297,802,662.38
  5. Step 5: Solve for x
    x = 12,297,802,662.38/125,000.04
  6. Step 6: Final answer
    x = 98,382.39

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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.