Home / 145,711.74-201,101.35-82,061.98

Finding the Fourth Proportional to 145,711.74, 201,101.35 and 82,061.98

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Solution

The fourth proportional to 145,711.74, 201,101.35 and 82,061.98 is: 113,256.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,711.74 : 201,101.35 = 82,061.98 : x
  2. Step 2: Convert to fraction form
    145,711.74/201,101.35 = 82,061.98/x
  3. Step 3: Cross multiply
    145,711.74x = 201,101.35 × 82,061.98
  4. Step 4: Simplify right side
    145,711.74x = 16,502,774,961.67
  5. Step 5: Solve for x
    x = 16,502,774,961.67/145,711.74
  6. Step 6: Final answer
    x = 113,256.32

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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.