Home / 145,366.68-200,599.02-81,710.40

Finding the Fourth Proportional to 145,366.68, 200,599.02 and 81,710.40

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Solution

The fourth proportional to 145,366.68, 200,599.02 and 81,710.40 is: 112,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,366.68 : 200,599.02 = 81,710.40 : x
  2. Step 2: Convert to fraction form
    145,366.68/200,599.02 = 81,710.40/x
  3. Step 3: Cross multiply
    145,366.68x = 200,599.02 × 81,710.40
  4. Step 4: Simplify right side
    145,366.68x = 16,391,026,163.81
  5. Step 5: Solve for x
    x = 16,391,026,163.81/145,366.68
  6. Step 6: Final answer
    x = 112,756.42

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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.