Home / 156,009.60-234,014.40-77,277.60

Finding the Fourth Proportional to 156,009.60, 234,014.40 and 77,277.60

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Solution

The fourth proportional to 156,009.60, 234,014.40 and 77,277.60 is: 115,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,009.60 : 234,014.40 = 77,277.60 : x
  2. Step 2: Convert to fraction form
    156,009.60/234,014.40 = 77,277.60/x
  3. Step 3: Cross multiply
    156,009.60x = 234,014.40 × 77,277.60
  4. Step 4: Simplify right side
    156,009.60x = 18,084,071,197.44
  5. Step 5: Solve for x
    x = 18,084,071,197.44/156,009.60
  6. Step 6: Final answer
    x = 115,916.40

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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.