Home / 156,989.04-216,636.12-89,925.36

Finding the Fourth Proportional to 156,989.04, 216,636.12 and 89,925.36

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Solution

The fourth proportional to 156,989.04, 216,636.12 and 89,925.36 is: 124,091.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,989.04 : 216,636.12 = 89,925.36 : x
  2. Step 2: Convert to fraction form
    156,989.04/216,636.12 = 89,925.36/x
  3. Step 3: Cross multiply
    156,989.04x = 216,636.12 × 89,925.36
  4. Step 4: Simplify right side
    156,989.04x = 19,481,081,080.00
  5. Step 5: Solve for x
    x = 19,481,081,080.00/156,989.04
  6. Step 6: Final answer
    x = 124,091.98

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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.