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Finding the Fourth Proportional to 147,020, 202,888.32 and 79,952

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Solution

The fourth proportional to 147,020, 202,888.32 and 79,952 is: 110,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,020 : 202,888.32 = 79,952 : x
  2. Step 2: Convert to fraction form
    147,020/202,888.32 = 79,952/x
  3. Step 3: Cross multiply
    147,020x = 202,888.32 × 79,952
  4. Step 4: Simplify right side
    147,020x = 16,221,326,960.64
  5. Step 5: Solve for x
    x = 16,221,326,960.64/147,020
  6. Step 6: Final answer
    x = 110,334.15

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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.