Home / 118,210.34-163,016.48-79,535.30

Finding the Fourth Proportional to 118,210.34, 163,016.48 and 79,535.30

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Solution

The fourth proportional to 118,210.34, 163,016.48 and 79,535.30 is: 109,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,210.34 : 163,016.48 = 79,535.30 : x
  2. Step 2: Convert to fraction form
    118,210.34/163,016.48 = 79,535.30/x
  3. Step 3: Cross multiply
    118,210.34x = 163,016.48 × 79,535.30
  4. Step 4: Simplify right side
    118,210.34x = 12,965,563,428.99
  5. Step 5: Solve for x
    x = 12,965,563,428.99/118,210.34
  6. Step 6: Final answer
    x = 109,682.15

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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.