Home / 118,821.72-163,973.88-65,110.08

Finding the Fourth Proportional to 118,821.72, 163,973.88 and 65,110.08

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Solution

The fourth proportional to 118,821.72, 163,973.88 and 65,110.08 is: 89,851.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,821.72 : 163,973.88 = 65,110.08 : x
  2. Step 2: Convert to fraction form
    118,821.72/163,973.88 = 65,110.08/x
  3. Step 3: Cross multiply
    118,821.72x = 163,973.88 × 65,110.08
  4. Step 4: Simplify right side
    118,821.72x = 10,676,352,444.71
  5. Step 5: Solve for x
    x = 10,676,352,444.71/118,821.72
  6. Step 6: Final answer
    x = 89,851.86

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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.