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Finding the Fourth Proportional to 157,070.72, 216,660.40 and 136,975.84

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Solution

The fourth proportional to 157,070.72, 216,660.40 and 136,975.84 is: 188,941.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,070.72 : 216,660.40 = 136,975.84 : x
  2. Step 2: Convert to fraction form
    157,070.72/216,660.40 = 136,975.84/x
  3. Step 3: Cross multiply
    157,070.72x = 216,660.40 × 136,975.84
  4. Step 4: Simplify right side
    157,070.72x = 29,677,239,400.65
  5. Step 5: Solve for x
    x = 29,677,239,400.65/157,070.72
  6. Step 6: Final answer
    x = 188,941.89

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