Home / 145,539.14-200,827.76-81,875.57

Finding the Fourth Proportional to 145,539.14, 200,827.76 and 81,875.57

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Solution

The fourth proportional to 145,539.14, 200,827.76 and 81,875.57 is: 112,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,539.14 : 200,827.76 = 81,875.57 : x
  2. Step 2: Convert to fraction form
    145,539.14/200,827.76 = 81,875.57/x
  3. Step 3: Cross multiply
    145,539.14x = 200,827.76 × 81,875.57
  4. Step 4: Simplify right side
    145,539.14x = 16,442,885,908.31
  5. Step 5: Solve for x
    x = 16,442,885,908.31/145,539.14
  6. Step 6: Final answer
    x = 112,979.14

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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.