Home / 155,965.16-215,233.62-84,346.58

Finding the Fourth Proportional to 155,965.16, 215,233.62 and 84,346.58

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Solution

The fourth proportional to 155,965.16, 215,233.62 and 84,346.58 is: 116,399.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,965.16 : 215,233.62 = 84,346.58 : x
  2. Step 2: Convert to fraction form
    155,965.16/215,233.62 = 84,346.58/x
  3. Step 3: Cross multiply
    155,965.16x = 215,233.62 × 84,346.58
  4. Step 4: Simplify right side
    155,965.16x = 18,154,219,748.02
  5. Step 5: Solve for x
    x = 18,154,219,748.02/155,965.16
  6. Step 6: Final answer
    x = 116,399.20

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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.