Home / 145,789.11-201,256.52-102,803.63

Finding the Fourth Proportional to 145,789.11, 201,256.52 and 102,803.63

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Solution

The fourth proportional to 145,789.11, 201,256.52 and 102,803.63 is: 141,916.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,789.11 : 201,256.52 = 102,803.63 : x
  2. Step 2: Convert to fraction form
    145,789.11/201,256.52 = 102,803.63/x
  3. Step 3: Cross multiply
    145,789.11x = 201,256.52 × 102,803.63
  4. Step 4: Simplify right side
    145,789.11x = 20,689,900,817.17
  5. Step 5: Solve for x
    x = 20,689,900,817.17/145,789.11
  6. Step 6: Final answer
    x = 141,916.64

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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.