Home / 130,711.61-195,810.44-86,202.51

Finding the Fourth Proportional to 130,711.61, 195,810.44 and 86,202.51

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Solution

The fourth proportional to 130,711.61, 195,810.44 and 86,202.51 is: 129,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,711.61 : 195,810.44 = 86,202.51 : x
  2. Step 2: Convert to fraction form
    130,711.61/195,810.44 = 86,202.51/x
  3. Step 3: Cross multiply
    130,711.61x = 195,810.44 × 86,202.51
  4. Step 4: Simplify right side
    130,711.61x = 16,879,350,981.19
  5. Step 5: Solve for x
    x = 16,879,350,981.19/130,711.61
  6. Step 6: Final answer
    x = 129,134.30

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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.