Home / 131,399.04-181,330.88-74,810.44

Finding the Fourth Proportional to 131,399.04, 181,330.88 and 74,810.44

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Solution

The fourth proportional to 131,399.04, 181,330.88 and 74,810.44 is: 103,238.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,399.04 : 181,330.88 = 74,810.44 : x
  2. Step 2: Convert to fraction form
    131,399.04/181,330.88 = 74,810.44/x
  3. Step 3: Cross multiply
    131,399.04x = 181,330.88 × 74,810.44
  4. Step 4: Simplify right side
    131,399.04x = 13,565,442,918.39
  5. Step 5: Solve for x
    x = 13,565,442,918.39/131,399.04
  6. Step 6: Final answer
    x = 103,238.52

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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.