Home / 173,442.78-239,389.68-105,445.38

Finding the Fourth Proportional to 173,442.78, 239,389.68 and 105,445.38

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Solution

The fourth proportional to 173,442.78, 239,389.68 and 105,445.38 is: 145,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,442.78 : 239,389.68 = 105,445.38 : x
  2. Step 2: Convert to fraction form
    173,442.78/239,389.68 = 105,445.38/x
  3. Step 3: Cross multiply
    173,442.78x = 239,389.68 × 105,445.38
  4. Step 4: Simplify right side
    173,442.78x = 25,242,535,775.68
  5. Step 5: Solve for x
    x = 25,242,535,775.68/173,442.78
  6. Step 6: Final answer
    x = 145,538.12

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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.