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Finding the Fourth Proportional to 157,160.90, 216,900.51 and 88,261.68

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Solution

The fourth proportional to 157,160.90, 216,900.51 and 88,261.68 is: 121,811.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,160.90 : 216,900.51 = 88,261.68 : x
  2. Step 2: Convert to fraction form
    157,160.90/216,900.51 = 88,261.68/x
  3. Step 3: Cross multiply
    157,160.90x = 216,900.51 × 88,261.68
  4. Step 4: Simplify right side
    157,160.90x = 19,144,003,887.85
  5. Step 5: Solve for x
    x = 19,144,003,887.85/157,160.90
  6. Step 6: Final answer
    x = 121,811.49

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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.