Home / 118,273.68-163,253.86-72,965.76

Finding the Fourth Proportional to 118,273.68, 163,253.86 and 72,965.76

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Solution

The fourth proportional to 118,273.68, 163,253.86 and 72,965.76 is: 100,715.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,273.68 : 163,253.86 = 72,965.76 : x
  2. Step 2: Convert to fraction form
    118,273.68/163,253.86 = 72,965.76/x
  3. Step 3: Cross multiply
    118,273.68x = 163,253.86 × 72,965.76
  4. Step 4: Simplify right side
    118,273.68x = 11,911,941,967.83
  5. Step 5: Solve for x
    x = 11,911,941,967.83/118,273.68
  6. Step 6: Final answer
    x = 100,715.07

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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.