Home / 118,354.76-163,328.74-64,639.80

Finding the Fourth Proportional to 118,354.76, 163,328.74 and 64,639.80

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Solution

The fourth proportional to 118,354.76, 163,328.74 and 64,639.80 is: 89,202.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,354.76 : 163,328.74 = 64,639.80 : x
  2. Step 2: Convert to fraction form
    118,354.76/163,328.74 = 64,639.80/x
  3. Step 3: Cross multiply
    118,354.76x = 163,328.74 × 64,639.80
  4. Step 4: Simplify right side
    118,354.76x = 10,557,537,087.85
  5. Step 5: Solve for x
    x = 10,557,537,087.85/118,354.76
  6. Step 6: Final answer
    x = 89,202.47

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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.