Home / 156,962.60-235,443.90-139,855.40

Finding the Fourth Proportional to 156,962.60, 235,443.90 and 139,855.40

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Solution

The fourth proportional to 156,962.60, 235,443.90 and 139,855.40 is: 209,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,962.60 : 235,443.90 = 139,855.40 : x
  2. Step 2: Convert to fraction form
    156,962.60/235,443.90 = 139,855.40/x
  3. Step 3: Cross multiply
    156,962.60x = 235,443.90 × 139,855.40
  4. Step 4: Simplify right side
    156,962.60x = 32,928,100,812.06
  5. Step 5: Solve for x
    x = 32,928,100,812.06/156,962.60
  6. Step 6: Final answer
    x = 209,783.10

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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.