Home / 91,526.33-137,386.54-81,064.27

Finding the Fourth Proportional to 91,526.33, 137,386.54 and 81,064.27

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Solution

The fourth proportional to 91,526.33, 137,386.54 and 81,064.27 is: 121,682.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,526.33 : 137,386.54 = 81,064.27 : x
  2. Step 2: Convert to fraction form
    91,526.33/137,386.54 = 81,064.27/x
  3. Step 3: Cross multiply
    91,526.33x = 137,386.54 × 81,064.27
  4. Step 4: Simplify right side
    91,526.33x = 11,137,139,073.19
  5. Step 5: Solve for x
    x = 11,137,139,073.19/91,526.33
  6. Step 6: Final answer
    x = 121,682.36

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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.