Home / 156,400.40-234,039.95-135,412.80

Finding the Fourth Proportional to 156,400.40, 234,039.95 and 135,412.80

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Solution

The fourth proportional to 156,400.40, 234,039.95 and 135,412.80 is: 202,633.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,400.40 : 234,039.95 = 135,412.80 : x
  2. Step 2: Convert to fraction form
    156,400.40/234,039.95 = 135,412.80/x
  3. Step 3: Cross multiply
    156,400.40x = 234,039.95 × 135,412.80
  4. Step 4: Simplify right side
    156,400.40x = 31,692,004,264.30
  5. Step 5: Solve for x
    x = 31,692,004,264.30/156,400.40
  6. Step 6: Final answer
    x = 202,633.79

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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.