Home / 109,290.20-163,838.10-64,869.80

Finding the Fourth Proportional to 109,290.20, 163,838.10 and 64,869.80

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Solution

The fourth proportional to 109,290.20, 163,838.10 and 64,869.80 is: 97,247.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,290.20 : 163,838.10 = 64,869.80 : x
  2. Step 2: Convert to fraction form
    109,290.20/163,838.10 = 64,869.80/x
  3. Step 3: Cross multiply
    109,290.20x = 163,838.10 × 64,869.80
  4. Step 4: Simplify right side
    109,290.20x = 10,628,144,779.38
  5. Step 5: Solve for x
    x = 10,628,144,779.38/109,290.20
  6. Step 6: Final answer
    x = 97,247.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.