Home / 118,707.81-163,810.32-64,982.45

Finding the Fourth Proportional to 118,707.81, 163,810.32 and 64,982.45

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Solution

The fourth proportional to 118,707.81, 163,810.32 and 64,982.45 is: 89,672.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,707.81 : 163,810.32 = 64,982.45 : x
  2. Step 2: Convert to fraction form
    118,707.81/163,810.32 = 64,982.45/x
  3. Step 3: Cross multiply
    118,707.81x = 163,810.32 × 64,982.45
  4. Step 4: Simplify right side
    118,707.81x = 10,644,795,928.88
  5. Step 5: Solve for x
    x = 10,644,795,928.88/118,707.81
  6. Step 6: Final answer
    x = 89,672.25

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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.