Home / 140,530.84-193,878.09-89,534.45

Finding the Fourth Proportional to 140,530.84, 193,878.09 and 89,534.45

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Solution

The fourth proportional to 140,530.84, 193,878.09 and 89,534.45 is: 123,522.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,530.84 : 193,878.09 = 89,534.45 : x
  2. Step 2: Convert to fraction form
    140,530.84/193,878.09 = 89,534.45/x
  3. Step 3: Cross multiply
    140,530.84x = 193,878.09 × 89,534.45
  4. Step 4: Simplify right side
    140,530.84x = 17,358,768,639.90
  5. Step 5: Solve for x
    x = 17,358,768,639.90/140,530.84
  6. Step 6: Final answer
    x = 123,522.84

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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.