Home / 114,801.81-158,428.40-63,121.10

Finding the Fourth Proportional to 114,801.81, 158,428.40 and 63,121.10

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Solution

The fourth proportional to 114,801.81, 158,428.40 and 63,121.10 is: 87,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,801.81 : 158,428.40 = 63,121.10 : x
  2. Step 2: Convert to fraction form
    114,801.81/158,428.40 = 63,121.10/x
  3. Step 3: Cross multiply
    114,801.81x = 158,428.40 × 63,121.10
  4. Step 4: Simplify right side
    114,801.81x = 10,000,174,879.24
  5. Step 5: Solve for x
    x = 10,000,174,879.24/114,801.81
  6. Step 6: Final answer
    x = 87,108.16

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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.