Home / 156,984.60-235,476.90-90,554.48

Finding the Fourth Proportional to 156,984.60, 235,476.90 and 90,554.48

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Solution

The fourth proportional to 156,984.60, 235,476.90 and 90,554.48 is: 135,831.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.60 : 235,476.90 = 90,554.48 : x
  2. Step 2: Convert to fraction form
    156,984.60/235,476.90 = 90,554.48/x
  3. Step 3: Cross multiply
    156,984.60x = 235,476.90 × 90,554.48
  4. Step 4: Simplify right side
    156,984.60x = 21,323,487,054.13
  5. Step 5: Solve for x
    x = 21,323,487,054.13/156,984.60
  6. Step 6: Final answer
    x = 135,831.71

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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.