Home / 156,911.04-216,518.40-88,935.84

Finding the Fourth Proportional to 156,911.04, 216,518.40 and 88,935.84

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Solution

The fourth proportional to 156,911.04, 216,518.40 and 88,935.84 is: 122,720.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,911.04 : 216,518.40 = 88,935.84 : x
  2. Step 2: Convert to fraction form
    156,911.04/216,518.40 = 88,935.84/x
  3. Step 3: Cross multiply
    156,911.04x = 216,518.40 × 88,935.84
  4. Step 4: Simplify right side
    156,911.04x = 19,256,245,779.46
  5. Step 5: Solve for x
    x = 19,256,245,779.46/156,911.04
  6. Step 6: Final answer
    x = 122,720.78

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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.