Home / 210,637.68-290,832.18-130,175.52

Finding the Fourth Proportional to 210,637.68, 290,832.18 and 130,175.52

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Solution

The fourth proportional to 210,637.68, 290,832.18 and 130,175.52 is: 179,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,637.68 : 290,832.18 = 130,175.52 : x
  2. Step 2: Convert to fraction form
    210,637.68/290,832.18 = 130,175.52/x
  3. Step 3: Cross multiply
    210,637.68x = 290,832.18 × 130,175.52
  4. Step 4: Simplify right side
    210,637.68x = 37,859,230,264.23
  5. Step 5: Solve for x
    x = 37,859,230,264.23/210,637.68
  6. Step 6: Final answer
    x = 179,736.27

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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.