Home / 111,031.40-166,547.10-104,907.80

Finding the Fourth Proportional to 111,031.40, 166,547.10 and 104,907.80

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Solution

The fourth proportional to 111,031.40, 166,547.10 and 104,907.80 is: 157,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,031.40 : 166,547.10 = 104,907.80 : x
  2. Step 2: Convert to fraction form
    111,031.40/166,547.10 = 104,907.80/x
  3. Step 3: Cross multiply
    111,031.40x = 166,547.10 × 104,907.80
  4. Step 4: Simplify right side
    111,031.40x = 17,472,089,857.38
  5. Step 5: Solve for x
    x = 17,472,089,857.38/111,031.40
  6. Step 6: Final answer
    x = 157,361.70

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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.