Home / 152,878.08-210,595.20-130,144.08

Finding the Fourth Proportional to 152,878.08, 210,595.20 and 130,144.08

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Solution

The fourth proportional to 152,878.08, 210,595.20 and 130,144.08 is: 179,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,878.08 : 210,595.20 = 130,144.08 : x
  2. Step 2: Convert to fraction form
    152,878.08/210,595.20 = 130,144.08/x
  3. Step 3: Cross multiply
    152,878.08x = 210,595.20 × 130,144.08
  4. Step 4: Simplify right side
    152,878.08x = 27,407,718,556.42
  5. Step 5: Solve for x
    x = 27,407,718,556.42/152,878.08
  6. Step 6: Final answer
    x = 179,278.28

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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.