Home / 155,800.45-215,048.69-92,160.37

Finding the Fourth Proportional to 155,800.45, 215,048.69 and 92,160.37

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Solution

The fourth proportional to 155,800.45, 215,048.69 and 92,160.37 is: 127,207.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,800.45 : 215,048.69 = 92,160.37 : x
  2. Step 2: Convert to fraction form
    155,800.45/215,048.69 = 92,160.37/x
  3. Step 3: Cross multiply
    155,800.45x = 215,048.69 × 92,160.37
  4. Step 4: Simplify right side
    155,800.45x = 19,818,966,838.42
  5. Step 5: Solve for x
    x = 19,818,966,838.42/155,800.45
  6. Step 6: Final answer
    x = 127,207.38

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1.5x scale

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.