Home / 91,008.79-136,513.19-90,877.37

Finding the Fourth Proportional to 91,008.79, 136,513.19 and 90,877.37

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Solution

The fourth proportional to 91,008.79, 136,513.19 and 90,877.37 is: 136,316.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,008.79 : 136,513.19 = 90,877.37 : x
  2. Step 2: Convert to fraction form
    91,008.79/136,513.19 = 90,877.37/x
  3. Step 3: Cross multiply
    91,008.79x = 136,513.19 × 90,877.37
  4. Step 4: Simplify right side
    91,008.79x = 12,405,959,677.51
  5. Step 5: Solve for x
    x = 12,405,959,677.51/91,008.79
  6. Step 6: Final answer
    x = 136,316.06

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1.5x scale

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.