Home / 118,290.81-163,244.11-64,576.23

Finding the Fourth Proportional to 118,290.81, 163,244.11 and 64,576.23

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Solution

The fourth proportional to 118,290.81, 163,244.11 and 64,576.23 is: 89,116.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,290.81 : 163,244.11 = 64,576.23 : x
  2. Step 2: Convert to fraction form
    118,290.81/163,244.11 = 64,576.23/x
  3. Step 3: Cross multiply
    118,290.81x = 163,244.11 × 64,576.23
  4. Step 4: Simplify right side
    118,290.81x = 10,541,688,215.84
  5. Step 5: Solve for x
    x = 10,541,688,215.84/118,290.81
  6. Step 6: Final answer
    x = 89,116.72

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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.