Home / 157,046.40-216,729.72-89,991.36

Finding the Fourth Proportional to 157,046.40, 216,729.72 and 89,991.36

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Solution

The fourth proportional to 157,046.40, 216,729.72 and 89,991.36 is: 124,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,046.40 : 216,729.72 = 89,991.36 : x
  2. Step 2: Convert to fraction form
    157,046.40/216,729.72 = 89,991.36/x
  3. Step 3: Cross multiply
    157,046.40x = 216,729.72 × 89,991.36
  4. Step 4: Simplify right side
    157,046.40x = 19,503,802,255.22
  5. Step 5: Solve for x
    x = 19,503,802,255.22/157,046.40
  6. Step 6: Final answer
    x = 124,191.34

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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.