Home / 118,970.34-164,145.78-76,553.46

Finding the Fourth Proportional to 118,970.34, 164,145.78 and 76,553.46

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Solution

The fourth proportional to 118,970.34, 164,145.78 and 76,553.46 is: 105,622.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,970.34 : 164,145.78 = 76,553.46 : x
  2. Step 2: Convert to fraction form
    118,970.34/164,145.78 = 76,553.46/x
  3. Step 3: Cross multiply
    118,970.34x = 164,145.78 × 76,553.46
  4. Step 4: Simplify right side
    118,970.34x = 12,565,927,403.40
  5. Step 5: Solve for x
    x = 12,565,927,403.40/118,970.34
  6. Step 6: Final answer
    x = 105,622.35

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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.