Home / 114,312.10-171,079.35-100,315.30

Finding the Fourth Proportional to 114,312.10, 171,079.35 and 100,315.30

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Solution

The fourth proportional to 114,312.10, 171,079.35 and 100,315.30 is: 150,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,312.10 : 171,079.35 = 100,315.30 : x
  2. Step 2: Convert to fraction form
    114,312.10/171,079.35 = 100,315.30/x
  3. Step 3: Cross multiply
    114,312.10x = 171,079.35 × 100,315.30
  4. Step 4: Simplify right side
    114,312.10x = 17,161,876,319.06
  5. Step 5: Solve for x
    x = 17,161,876,319.06/114,312.10
  6. Step 6: Final answer
    x = 150,131.76

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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.