Home / 272,985.12-409,478.73-83,444.76

Finding the Fourth Proportional to 272,985.12, 409,478.73 and 83,444.76

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Solution

The fourth proportional to 272,985.12, 409,478.73 and 83,444.76 is: 125,167.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,985.12 : 409,478.73 = 83,444.76 : x
  2. Step 2: Convert to fraction form
    272,985.12/409,478.73 = 83,444.76/x
  3. Step 3: Cross multiply
    272,985.12x = 409,478.73 × 83,444.76
  4. Step 4: Simplify right side
    272,985.12x = 34,168,853,237.41
  5. Step 5: Solve for x
    x = 34,168,853,237.41/272,985.12
  6. Step 6: Final answer
    x = 125,167.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.