Home / 140,528.90-210,804.28-40,690.52

Finding the Fourth Proportional to 140,528.90, 210,804.28 and 40,690.52

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Solution

The fourth proportional to 140,528.90, 210,804.28 and 40,690.52 is: 61,038.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,528.90 : 210,804.28 = 40,690.52 : x
  2. Step 2: Convert to fraction form
    140,528.90/210,804.28 = 40,690.52/x
  3. Step 3: Cross multiply
    140,528.90x = 210,804.28 × 40,690.52
  4. Step 4: Simplify right side
    140,528.90x = 8,577,735,771.43
  5. Step 5: Solve for x
    x = 8,577,735,771.43/140,528.90
  6. Step 6: Final answer
    x = 61,038.94

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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.