Home / 109,106.70-163,530.45-45,926.70

Finding the Fourth Proportional to 109,106.70, 163,530.45 and 45,926.70

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Solution

The fourth proportional to 109,106.70, 163,530.45 and 45,926.70 is: 68,835.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,106.70 : 163,530.45 = 45,926.70 : x
  2. Step 2: Convert to fraction form
    109,106.70/163,530.45 = 45,926.70/x
  3. Step 3: Cross multiply
    109,106.70x = 163,530.45 × 45,926.70
  4. Step 4: Simplify right side
    109,106.70x = 7,510,413,918.02
  5. Step 5: Solve for x
    x = 7,510,413,918.02/109,106.70
  6. Step 6: Final answer
    x = 68,835.50

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1.5x scale

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.