Home / 210,729.34-290,725.22-130,016.88

Finding the Fourth Proportional to 210,729.34, 290,725.22 and 130,016.88

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Solution

The fourth proportional to 210,729.34, 290,725.22 and 130,016.88 is: 179,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,729.34 : 290,725.22 = 130,016.88 : x
  2. Step 2: Convert to fraction form
    210,729.34/290,725.22 = 130,016.88/x
  3. Step 3: Cross multiply
    210,729.34x = 290,725.22 × 130,016.88
  4. Step 4: Simplify right side
    210,729.34x = 37,799,186,041.71
  5. Step 5: Solve for x
    x = 37,799,186,041.71/210,729.34
  6. Step 6: Final answer
    x = 179,373.15

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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.