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Finding the Fourth Proportional to 130,592.53, 195,888.80 and 86,208.89

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Solution

The fourth proportional to 130,592.53, 195,888.80 and 86,208.89 is: 129,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,592.53 : 195,888.80 = 86,208.89 : x
  2. Step 2: Convert to fraction form
    130,592.53/195,888.80 = 86,208.89/x
  3. Step 3: Cross multiply
    130,592.53x = 195,888.80 × 86,208.89
  4. Step 4: Simplify right side
    130,592.53x = 16,887,354,600.94
  5. Step 5: Solve for x
    x = 16,887,354,600.94/130,592.53
  6. Step 6: Final answer
    x = 129,313.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.