Home / 156,985.34-216,563.63-93,278.03

Finding the Fourth Proportional to 156,985.34, 216,563.63 and 93,278.03

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Solution

The fourth proportional to 156,985.34, 216,563.63 and 93,278.03 is: 128,678.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.34 : 216,563.63 = 93,278.03 : x
  2. Step 2: Convert to fraction form
    156,985.34/216,563.63 = 93,278.03/x
  3. Step 3: Cross multiply
    156,985.34x = 216,563.63 × 93,278.03
  4. Step 4: Simplify right side
    156,985.34x = 20,200,627,226.84
  5. Step 5: Solve for x
    x = 20,200,627,226.84/156,985.34
  6. Step 6: Final answer
    x = 128,678.44

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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.