Home / 130,569.50-195,854.27-86,185.89

Finding the Fourth Proportional to 130,569.50, 195,854.27 and 86,185.89

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Solution

The fourth proportional to 130,569.50, 195,854.27 and 86,185.89 is: 129,278.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,569.50 : 195,854.27 = 86,185.89 : x
  2. Step 2: Convert to fraction form
    130,569.50/195,854.27 = 86,185.89/x
  3. Step 3: Cross multiply
    130,569.50x = 195,854.27 × 86,185.89
  4. Step 4: Simplify right side
    130,569.50x = 16,879,874,139.32
  5. Step 5: Solve for x
    x = 16,879,874,139.32/130,569.50
  6. Step 6: Final answer
    x = 129,278.84

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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.