Home / 157,137.42-216,854.54-89,157.26

Finding the Fourth Proportional to 157,137.42, 216,854.54 and 89,157.26

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Solution

The fourth proportional to 157,137.42, 216,854.54 and 89,157.26 is: 123,039.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,137.42 : 216,854.54 = 89,157.26 : x
  2. Step 2: Convert to fraction form
    157,137.42/216,854.54 = 89,157.26/x
  3. Step 3: Cross multiply
    157,137.42x = 216,854.54 × 89,157.26
  4. Step 4: Simplify right side
    157,137.42x = 19,334,155,074.90
  5. Step 5: Solve for x
    x = 19,334,155,074.90/157,137.42
  6. Step 6: Final answer
    x = 123,039.79

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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.