Home / 148,979.04-205,588.80-80,995.47

Finding the Fourth Proportional to 148,979.04, 205,588.80 and 80,995.47

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Solution

The fourth proportional to 148,979.04, 205,588.80 and 80,995.47 is: 111,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,979.04 : 205,588.80 = 80,995.47 : x
  2. Step 2: Convert to fraction form
    148,979.04/205,588.80 = 80,995.47/x
  3. Step 3: Cross multiply
    148,979.04x = 205,588.80 × 80,995.47
  4. Step 4: Simplify right side
    148,979.04x = 16,651,761,482.74
  5. Step 5: Solve for x
    x = 16,651,761,482.74/148,979.04
  6. Step 6: Final answer
    x = 111,772.51

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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.