Home / 156,935.07-216,460.76-103,202.91

Finding the Fourth Proportional to 156,935.07, 216,460.76 and 103,202.91

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Solution

The fourth proportional to 156,935.07, 216,460.76 and 103,202.91 is: 142,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.07 : 216,460.76 = 103,202.91 : x
  2. Step 2: Convert to fraction form
    156,935.07/216,460.76 = 103,202.91/x
  3. Step 3: Cross multiply
    156,935.07x = 216,460.76 × 103,202.91
  4. Step 4: Simplify right side
    156,935.07x = 22,339,379,816.80
  5. Step 5: Solve for x
    x = 22,339,379,816.80/156,935.07
  6. Step 6: Final answer
    x = 142,347.91

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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.