Home / 152,135.22-210,161.35-138,500.49

Finding the Fourth Proportional to 152,135.22, 210,161.35 and 138,500.49

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Solution

The fourth proportional to 152,135.22, 210,161.35 and 138,500.49 is: 191,326.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,135.22 : 210,161.35 = 138,500.49 : x
  2. Step 2: Convert to fraction form
    152,135.22/210,161.35 = 138,500.49/x
  3. Step 3: Cross multiply
    152,135.22x = 210,161.35 × 138,500.49
  4. Step 4: Simplify right side
    152,135.22x = 29,107,448,210.75
  5. Step 5: Solve for x
    x = 29,107,448,210.75/152,135.22
  6. Step 6: Final answer
    x = 191,326.17

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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.