Home / 156,009.60-234,095.40-72,903.60

Finding the Fourth Proportional to 156,009.60, 234,095.40 and 72,903.60

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Solution

The fourth proportional to 156,009.60, 234,095.40 and 72,903.60 is: 109,393.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,009.60 : 234,095.40 = 72,903.60 : x
  2. Step 2: Convert to fraction form
    156,009.60/234,095.40 = 72,903.60/x
  3. Step 3: Cross multiply
    156,009.60x = 234,095.40 × 72,903.60
  4. Step 4: Simplify right side
    156,009.60x = 17,066,397,403.44
  5. Step 5: Solve for x
    x = 17,066,397,403.44/156,009.60
  6. Step 6: Final answer
    x = 109,393.25

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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.