Home / 210,103.40-315,107.04-60,342.50

Finding the Fourth Proportional to 210,103.40, 315,107.04 and 60,342.50

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Solution

The fourth proportional to 210,103.40, 315,107.04 and 60,342.50 is: 90,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,103.40 : 315,107.04 = 60,342.50 : x
  2. Step 2: Convert to fraction form
    210,103.40/315,107.04 = 60,342.50/x
  3. Step 3: Cross multiply
    210,103.40x = 315,107.04 × 60,342.50
  4. Step 4: Simplify right side
    210,103.40x = 19,014,346,561.20
  5. Step 5: Solve for x
    x = 19,014,346,561.20/210,103.40
  6. Step 6: Final answer
    x = 90,499.95

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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.