Home / 260,107.04-390,186.52-70,570.38

Finding the Fourth Proportional to 260,107.04, 390,186.52 and 70,570.38

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Solution

The fourth proportional to 260,107.04, 390,186.52 and 70,570.38 is: 105,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,107.04 : 390,186.52 = 70,570.38 : x
  2. Step 2: Convert to fraction form
    260,107.04/390,186.52 = 70,570.38/x
  3. Step 3: Cross multiply
    260,107.04x = 390,186.52 × 70,570.38
  4. Step 4: Simplify right side
    260,107.04x = 27,535,610,987.28
  5. Step 5: Solve for x
    x = 27,535,610,987.28/260,107.04
  6. Step 6: Final answer
    x = 105,862.61

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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.