Home / 130,634.04-195,618.69-86,125.76

Finding the Fourth Proportional to 130,634.04, 195,618.69 and 86,125.76

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Solution

The fourth proportional to 130,634.04, 195,618.69 and 86,125.76 is: 128,969.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,634.04 : 195,618.69 = 86,125.76 : x
  2. Step 2: Convert to fraction form
    130,634.04/195,618.69 = 86,125.76/x
  3. Step 3: Cross multiply
    130,634.04x = 195,618.69 × 86,125.76
  4. Step 4: Simplify right side
    130,634.04x = 16,847,807,368.36
  5. Step 5: Solve for x
    x = 16,847,807,368.36/130,634.04
  6. Step 6: Final answer
    x = 128,969.50

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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.