Home / 190,031.16-285,129.44-119,116.32

Finding the Fourth Proportional to 190,031.16, 285,129.44 and 119,116.32

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Solution

The fourth proportional to 190,031.16, 285,129.44 and 119,116.32 is: 178,726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,031.16 : 285,129.44 = 119,116.32 : x
  2. Step 2: Convert to fraction form
    190,031.16/285,129.44 = 119,116.32/x
  3. Step 3: Cross multiply
    190,031.16x = 285,129.44 × 119,116.32
  4. Step 4: Simplify right side
    190,031.16x = 33,963,569,020.88
  5. Step 5: Solve for x
    x = 33,963,569,020.88/190,031.16
  6. Step 6: Final answer
    x = 178,726.32

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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.