Home / 155,965.64-215,233.08-84,346.16

Finding the Fourth Proportional to 155,965.64, 215,233.08 and 84,346.16

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Solution

The fourth proportional to 155,965.64, 215,233.08 and 84,346.16 is: 116,397.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,965.64 : 215,233.08 = 84,346.16 : x
  2. Step 2: Convert to fraction form
    155,965.64/215,233.08 = 84,346.16/x
  3. Step 3: Cross multiply
    155,965.64x = 215,233.08 × 84,346.16
  4. Step 4: Simplify right side
    155,965.64x = 18,154,083,802.97
  5. Step 5: Solve for x
    x = 18,154,083,802.97/155,965.64
  6. Step 6: Final answer
    x = 116,397.97

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1.5x scale

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.