Home / 156,975.39-216,628.47-85,355.58

Finding the Fourth Proportional to 156,975.39, 216,628.47 and 85,355.58

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Solution

The fourth proportional to 156,975.39, 216,628.47 and 85,355.58 is: 117,792.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.39 : 216,628.47 = 85,355.58 : x
  2. Step 2: Convert to fraction form
    156,975.39/216,628.47 = 85,355.58/x
  3. Step 3: Cross multiply
    156,975.39x = 216,628.47 × 85,355.58
  4. Step 4: Simplify right side
    156,975.39x = 18,490,448,701.36
  5. Step 5: Solve for x
    x = 18,490,448,701.36/156,975.39
  6. Step 6: Final answer
    x = 117,792.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.