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Finding the Fourth Proportional to 158,645.12, 237,900 and 83,718.08

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Solution

The fourth proportional to 158,645.12, 237,900 and 83,718.08 is: 125,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,645.12 : 237,900 = 83,718.08 : x
  2. Step 2: Convert to fraction form
    158,645.12/237,900 = 83,718.08/x
  3. Step 3: Cross multiply
    158,645.12x = 237,900 × 83,718.08
  4. Step 4: Simplify right side
    158,645.12x = 19,916,531,232
  5. Step 5: Solve for x
    x = 19,916,531,232/158,645.12
  6. Step 6: Final answer
    x = 125,541.40

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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.