Home / 216,749.51-299,174.40-126,123

Finding the Fourth Proportional to 216,749.51, 299,174.40 and 126,123

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Solution

The fourth proportional to 216,749.51, 299,174.40 and 126,123 is: 174,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,749.51 : 299,174.40 = 126,123 : x
  2. Step 2: Convert to fraction form
    216,749.51/299,174.40 = 126,123/x
  3. Step 3: Cross multiply
    216,749.51x = 299,174.40 × 126,123
  4. Step 4: Simplify right side
    216,749.51x = 37,732,772,851.20
  5. Step 5: Solve for x
    x = 37,732,772,851.20/216,749.51
  6. Step 6: Final answer
    x = 174,084.70

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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.