Home / 157,629.40-236,444.10-74,685.40

Finding the Fourth Proportional to 157,629.40, 236,444.10 and 74,685.40

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Solution

The fourth proportional to 157,629.40, 236,444.10 and 74,685.40 is: 112,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,629.40 : 236,444.10 = 74,685.40 : x
  2. Step 2: Convert to fraction form
    157,629.40/236,444.10 = 74,685.40/x
  3. Step 3: Cross multiply
    157,629.40x = 236,444.10 × 74,685.40
  4. Step 4: Simplify right side
    157,629.40x = 17,658,922,186.14
  5. Step 5: Solve for x
    x = 17,658,922,186.14/157,629.40
  6. Step 6: Final answer
    x = 112,028.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.