Home / 210,729.32-316,094.24-86,070.32

Finding the Fourth Proportional to 210,729.32, 316,094.24 and 86,070.32

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Solution

The fourth proportional to 210,729.32, 316,094.24 and 86,070.32 is: 129,105.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,729.32 : 316,094.24 = 86,070.32 : x
  2. Step 2: Convert to fraction form
    210,729.32/316,094.24 = 86,070.32/x
  3. Step 3: Cross multiply
    210,729.32x = 316,094.24 × 86,070.32
  4. Step 4: Simplify right side
    210,729.32x = 27,206,332,386.96
  5. Step 5: Solve for x
    x = 27,206,332,386.96/210,729.32
  6. Step 6: Final answer
    x = 129,105.59

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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.