Home / 155,346.66-214,386.14-87,385.03

Finding the Fourth Proportional to 155,346.66, 214,386.14 and 87,385.03

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Solution

The fourth proportional to 155,346.66, 214,386.14 and 87,385.03 is: 120,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,346.66 : 214,386.14 = 87,385.03 : x
  2. Step 2: Convert to fraction form
    155,346.66/214,386.14 = 87,385.03/x
  3. Step 3: Cross multiply
    155,346.66x = 214,386.14 × 87,385.03
  4. Step 4: Simplify right side
    155,346.66x = 18,734,138,957.98
  5. Step 5: Solve for x
    x = 18,734,138,957.98/155,346.66
  6. Step 6: Final answer
    x = 120,595.70

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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.