Home / 118,409.11-163,406.92-64,697.45

Finding the Fourth Proportional to 118,409.11, 163,406.92 and 64,697.45

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Solution

The fourth proportional to 118,409.11, 163,406.92 and 64,697.45 is: 89,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,409.11 : 163,406.92 = 64,697.45 : x
  2. Step 2: Convert to fraction form
    118,409.11/163,406.92 = 64,697.45/x
  3. Step 3: Cross multiply
    118,409.11x = 163,406.92 × 64,697.45
  4. Step 4: Simplify right side
    118,409.11x = 10,572,011,098.05
  5. Step 5: Solve for x
    x = 10,572,011,098.05/118,409.11
  6. Step 6: Final answer
    x = 89,283.77

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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.