Home / 210,946.04-316,469.84-86,287.40

Finding the Fourth Proportional to 210,946.04, 316,469.84 and 86,287.40

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Solution

The fourth proportional to 210,946.04, 316,469.84 and 86,287.40 is: 129,451.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,946.04 : 316,469.84 = 86,287.40 : x
  2. Step 2: Convert to fraction form
    210,946.04/316,469.84 = 86,287.40/x
  3. Step 3: Cross multiply
    210,946.04x = 316,469.84 × 86,287.40
  4. Step 4: Simplify right side
    210,946.04x = 27,307,359,672.02
  5. Step 5: Solve for x
    x = 27,307,359,672.02/210,946.04
  6. Step 6: Final answer
    x = 129,451.87

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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.