Home / 118,669.78-163,757.95-64,944.40

Finding the Fourth Proportional to 118,669.78, 163,757.95 and 64,944.40

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Solution

The fourth proportional to 118,669.78, 163,757.95 and 64,944.40 is: 89,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,669.78 : 163,757.95 = 64,944.40 : x
  2. Step 2: Convert to fraction form
    118,669.78/163,757.95 = 64,944.40/x
  3. Step 3: Cross multiply
    118,669.78x = 163,757.95 × 64,944.40
  4. Step 4: Simplify right side
    118,669.78x = 10,635,161,807.98
  5. Step 5: Solve for x
    x = 10,635,161,807.98/118,669.78
  6. Step 6: Final answer
    x = 89,619.80

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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.