Home / 145,112.49-200,248.50-80,585.83

Finding the Fourth Proportional to 145,112.49, 200,248.50 and 80,585.83

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Solution

The fourth proportional to 145,112.49, 200,248.50 and 80,585.83 is: 111,204.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,112.49 : 200,248.50 = 80,585.83 : x
  2. Step 2: Convert to fraction form
    145,112.49/200,248.50 = 80,585.83/x
  3. Step 3: Cross multiply
    145,112.49x = 200,248.50 × 80,585.83
  4. Step 4: Simplify right side
    145,112.49x = 16,137,190,577.51
  5. Step 5: Solve for x
    x = 16,137,190,577.51/145,112.49
  6. Step 6: Final answer
    x = 111,204.70

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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.