Home / 111,036.90-166,069.35-99,275.70

Finding the Fourth Proportional to 111,036.90, 166,069.35 and 99,275.70

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Solution

The fourth proportional to 111,036.90, 166,069.35 and 99,275.70 is: 148,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,036.90 : 166,069.35 = 99,275.70 : x
  2. Step 2: Convert to fraction form
    111,036.90/166,069.35 = 99,275.70/x
  3. Step 3: Cross multiply
    111,036.90x = 166,069.35 × 99,275.70
  4. Step 4: Simplify right side
    111,036.90x = 16,486,650,969.80
  5. Step 5: Solve for x
    x = 16,486,650,969.80/111,036.90
  6. Step 6: Final answer
    x = 148,479.03

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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.