Home / 157,146.48-216,960.12-109,382.40

Finding the Fourth Proportional to 157,146.48, 216,960.12 and 109,382.40

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Solution

The fourth proportional to 157,146.48, 216,960.12 and 109,382.40 is: 151,015.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,146.48 : 216,960.12 = 109,382.40 : x
  2. Step 2: Convert to fraction form
    157,146.48/216,960.12 = 109,382.40/x
  3. Step 3: Cross multiply
    157,146.48x = 216,960.12 × 109,382.40
  4. Step 4: Simplify right side
    157,146.48x = 23,731,618,629.89
  5. Step 5: Solve for x
    x = 23,731,618,629.89/157,146.48
  6. Step 6: Final answer
    x = 151,015.91

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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.