Home / 137,829.42-190,225.04-84,145.57

Finding the Fourth Proportional to 137,829.42, 190,225.04 and 84,145.57

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Solution

The fourth proportional to 137,829.42, 190,225.04 and 84,145.57 is: 116,133.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,829.42 : 190,225.04 = 84,145.57 : x
  2. Step 2: Convert to fraction form
    137,829.42/190,225.04 = 84,145.57/x
  3. Step 3: Cross multiply
    137,829.42x = 190,225.04 × 84,145.57
  4. Step 4: Simplify right side
    137,829.42x = 16,006,593,522.78
  5. Step 5: Solve for x
    x = 16,006,593,522.78/137,829.42
  6. Step 6: Final answer
    x = 116,133.36

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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.