Home / 111,099.12-153,312.98-63,367.84

Finding the Fourth Proportional to 111,099.12, 153,312.98 and 63,367.84

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Solution

The fourth proportional to 111,099.12, 153,312.98 and 63,367.84 is: 87,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,099.12 : 153,312.98 = 63,367.84 : x
  2. Step 2: Convert to fraction form
    111,099.12/153,312.98 = 63,367.84/x
  3. Step 3: Cross multiply
    111,099.12x = 153,312.98 × 63,367.84
  4. Step 4: Simplify right side
    111,099.12x = 9,715,112,386.56
  5. Step 5: Solve for x
    x = 9,715,112,386.56/111,099.12
  6. Step 6: Final answer
    x = 87,445.45

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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.