Home / 453,763.47-680,688-133,916.52

Finding the Fourth Proportional to 453,763.47, 680,688 and 133,916.52

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Solution

The fourth proportional to 453,763.47, 680,688 and 133,916.52 is: 200,887.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,763.47 : 680,688 = 133,916.52 : x
  2. Step 2: Convert to fraction form
    453,763.47/680,688 = 133,916.52/x
  3. Step 3: Cross multiply
    453,763.47x = 680,688 × 133,916.52
  4. Step 4: Simplify right side
    453,763.47x = 91,155,368,165.76
  5. Step 5: Solve for x
    x = 91,155,368,165.76/453,763.47
  6. Step 6: Final answer
    x = 200,887.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.