Home / 140,006.40-210,009.60-87,518.40

Finding the Fourth Proportional to 140,006.40, 210,009.60 and 87,518.40

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Solution

The fourth proportional to 140,006.40, 210,009.60 and 87,518.40 is: 131,277.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,006.40 : 210,009.60 = 87,518.40 : x
  2. Step 2: Convert to fraction form
    140,006.40/210,009.60 = 87,518.40/x
  3. Step 3: Cross multiply
    140,006.40x = 210,009.60 × 87,518.40
  4. Step 4: Simplify right side
    140,006.40x = 18,379,704,176.64
  5. Step 5: Solve for x
    x = 18,379,704,176.64/140,006.40
  6. Step 6: Final answer
    x = 131,277.60

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1.5x scale

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.