Home / 210,158.75-289,680.27-142,150.91

Finding the Fourth Proportional to 210,158.75, 289,680.27 and 142,150.91

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Solution

The fourth proportional to 210,158.75, 289,680.27 and 142,150.91 is: 195,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,158.75 : 289,680.27 = 142,150.91 : x
  2. Step 2: Convert to fraction form
    210,158.75/289,680.27 = 142,150.91/x
  3. Step 3: Cross multiply
    210,158.75x = 289,680.27 × 142,150.91
  4. Step 4: Simplify right side
    210,158.75x = 41,178,314,713.75
  5. Step 5: Solve for x
    x = 41,178,314,713.75/210,158.75
  6. Step 6: Final answer
    x = 195,939.10

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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.