Home / 118,669.85-163,763.00-64,220.75

Finding the Fourth Proportional to 118,669.85, 163,763.00 and 64,220.75

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Solution

The fourth proportional to 118,669.85, 163,763.00 and 64,220.75 is: 88,623.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,669.85 : 163,763.00 = 64,220.75 : x
  2. Step 2: Convert to fraction form
    118,669.85/163,763.00 = 64,220.75/x
  3. Step 3: Cross multiply
    118,669.85x = 163,763.00 × 64,220.75
  4. Step 4: Simplify right side
    118,669.85x = 10,516,983,252.21
  5. Step 5: Solve for x
    x = 10,516,983,252.21/118,669.85
  6. Step 6: Final answer
    x = 88,623.89

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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.