Home / 130,633.29-195,617.57-86,125.01

Finding the Fourth Proportional to 130,633.29, 195,617.57 and 86,125.01

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Solution

The fourth proportional to 130,633.29, 195,617.57 and 86,125.01 is: 128,968.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,633.29 : 195,617.57 = 86,125.01 : x
  2. Step 2: Convert to fraction form
    130,633.29/195,617.57 = 86,125.01/x
  3. Step 3: Cross multiply
    130,633.29x = 195,617.57 × 86,125.01
  4. Step 4: Simplify right side
    130,633.29x = 16,847,563,763.71
  5. Step 5: Solve for x
    x = 16,847,563,763.71/130,633.29
  6. Step 6: Final answer
    x = 128,968.38

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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.