Home / 145,397.80-200,635.14-84,982.60

Finding the Fourth Proportional to 145,397.80, 200,635.14 and 84,982.60

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Solution

The fourth proportional to 145,397.80, 200,635.14 and 84,982.60 is: 117,267.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,397.80 : 200,635.14 = 84,982.60 : x
  2. Step 2: Convert to fraction form
    145,397.80/200,635.14 = 84,982.60/x
  3. Step 3: Cross multiply
    145,397.80x = 200,635.14 × 84,982.60
  4. Step 4: Simplify right side
    145,397.80x = 17,050,495,848.56
  5. Step 5: Solve for x
    x = 17,050,495,848.56/145,397.80
  6. Step 6: Final answer
    x = 117,267.91

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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.