Home / 156,984.80-235,131.60-139,474.40

Finding the Fourth Proportional to 156,984.80, 235,131.60 and 139,474.40

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Solution

The fourth proportional to 156,984.80, 235,131.60 and 139,474.40 is: 208,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,984.80 : 235,131.60 = 139,474.40 : x
  2. Step 2: Convert to fraction form
    156,984.80/235,131.60 = 139,474.40/x
  3. Step 3: Cross multiply
    156,984.80x = 235,131.60 × 139,474.40
  4. Step 4: Simplify right side
    156,984.80x = 32,794,838,831.04
  5. Step 5: Solve for x
    x = 32,794,838,831.04/156,984.80
  6. Step 6: Final answer
    x = 208,904.55

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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.