Home / 145,852.08-218,694.60-86,729.04

Finding the Fourth Proportional to 145,852.08, 218,694.60 and 86,729.04

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Solution

The fourth proportional to 145,852.08, 218,694.60 and 86,729.04 is: 130,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,852.08 : 218,694.60 = 86,729.04 : x
  2. Step 2: Convert to fraction form
    145,852.08/218,694.60 = 86,729.04/x
  3. Step 3: Cross multiply
    145,852.08x = 218,694.60 × 86,729.04
  4. Step 4: Simplify right side
    145,852.08x = 18,967,172,711.18
  5. Step 5: Solve for x
    x = 18,967,172,711.18/145,852.08
  6. Step 6: Final answer
    x = 130,043.90

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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.