Home / 216,971.51-299,395.08-125,089.76

Finding the Fourth Proportional to 216,971.51, 299,395.08 and 125,089.76

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Solution

The fourth proportional to 216,971.51, 299,395.08 and 125,089.76 is: 172,609.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,971.51 : 299,395.08 = 125,089.76 : x
  2. Step 2: Convert to fraction form
    216,971.51/299,395.08 = 125,089.76/x
  3. Step 3: Cross multiply
    216,971.51x = 299,395.08 × 125,089.76
  4. Step 4: Simplify right side
    216,971.51x = 37,451,259,450.87
  5. Step 5: Solve for x
    x = 37,451,259,450.87/216,971.51
  6. Step 6: Final answer
    x = 172,609.11

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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.