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Finding the Fourth Proportional to 130,615.46, 180,082.47 and 84,593.79

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Solution

The fourth proportional to 130,615.46, 180,082.47 and 84,593.79 is: 116,631.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,615.46 : 180,082.47 = 84,593.79 : x
  2. Step 2: Convert to fraction form
    130,615.46/180,082.47 = 84,593.79/x
  3. Step 3: Cross multiply
    130,615.46x = 180,082.47 × 84,593.79
  4. Step 4: Simplify right side
    130,615.46x = 15,233,857,326.48
  5. Step 5: Solve for x
    x = 15,233,857,326.48/130,615.46
  6. Step 6: Final answer
    x = 116,631.35

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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.