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Finding the Fourth Proportional to 146,528, 202,208.64 and 79,460.16

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Solution

The fourth proportional to 146,528, 202,208.64 and 79,460.16 is: 109,655.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,528 : 202,208.64 = 79,460.16 : x
  2. Step 2: Convert to fraction form
    146,528/202,208.64 = 79,460.16/x
  3. Step 3: Cross multiply
    146,528x = 202,208.64 × 79,460.16
  4. Step 4: Simplify right side
    146,528x = 16,067,530,887.78
  5. Step 5: Solve for x
    x = 16,067,530,887.78/146,528
  6. Step 6: Final answer
    x = 109,655.02

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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.