Home / 117,887.48-162,374.81-90,611.40

Finding the Fourth Proportional to 117,887.48, 162,374.81 and 90,611.40

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Solution

The fourth proportional to 117,887.48, 162,374.81 and 90,611.40 is: 124,805.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,887.48 : 162,374.81 = 90,611.40 : x
  2. Step 2: Convert to fraction form
    117,887.48/162,374.81 = 90,611.40/x
  3. Step 3: Cross multiply
    117,887.48x = 162,374.81 × 90,611.40
  4. Step 4: Simplify right side
    117,887.48x = 14,713,008,405.78
  5. Step 5: Solve for x
    x = 14,713,008,405.78/117,887.48
  6. Step 6: Final answer
    x = 124,805.53

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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.