Home / 216,869.03-299,243.66-136,239.47

Finding the Fourth Proportional to 216,869.03, 299,243.66 and 136,239.47

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Solution

The fourth proportional to 216,869.03, 299,243.66 and 136,239.47 is: 187,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,869.03 : 299,243.66 = 136,239.47 : x
  2. Step 2: Convert to fraction form
    216,869.03/299,243.66 = 136,239.47/x
  3. Step 3: Cross multiply
    216,869.03x = 299,243.66 × 136,239.47
  4. Step 4: Simplify right side
    216,869.03x = 40,768,795,461.84
  5. Step 5: Solve for x
    x = 40,768,795,461.84/216,869.03
  6. Step 6: Final answer
    x = 187,988.10

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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.