Home / 98,557.28-147,841.86-66,953.96

Finding the Fourth Proportional to 98,557.28, 147,841.86 and 66,953.96

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Solution

The fourth proportional to 98,557.28, 147,841.86 and 66,953.96 is: 100,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,557.28 : 147,841.86 = 66,953.96 : x
  2. Step 2: Convert to fraction form
    98,557.28/147,841.86 = 66,953.96/x
  3. Step 3: Cross multiply
    98,557.28x = 147,841.86 × 66,953.96
  4. Step 4: Simplify right side
    98,557.28x = 9,898,597,980.77
  5. Step 5: Solve for x
    x = 9,898,597,980.77/98,557.28
  6. Step 6: Final answer
    x = 100,434.98

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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.