Home / 190,440.60-285,663.72-72,080.16

Finding the Fourth Proportional to 190,440.60, 285,663.72 and 72,080.16

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Solution

The fourth proportional to 190,440.60, 285,663.72 and 72,080.16 is: 108,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,440.60 : 285,663.72 = 72,080.16 : x
  2. Step 2: Convert to fraction form
    190,440.60/285,663.72 = 72,080.16/x
  3. Step 3: Cross multiply
    190,440.60x = 285,663.72 × 72,080.16
  4. Step 4: Simplify right side
    190,440.60x = 20,590,686,643.80
  5. Step 5: Solve for x
    x = 20,590,686,643.80/190,440.60
  6. Step 6: Final answer
    x = 108,121.31

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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.