Home / 157,055.31-235,442.43-57,145.05

Finding the Fourth Proportional to 157,055.31, 235,442.43 and 57,145.05

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Solution

The fourth proportional to 157,055.31, 235,442.43 and 57,145.05 is: 85,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,055.31 : 235,442.43 = 57,145.05 : x
  2. Step 2: Convert to fraction form
    157,055.31/235,442.43 = 57,145.05/x
  3. Step 3: Cross multiply
    157,055.31x = 235,442.43 × 57,145.05
  4. Step 4: Simplify right side
    157,055.31x = 13,454,369,434.47
  5. Step 5: Solve for x
    x = 13,454,369,434.47/157,055.31
  6. Step 6: Final answer
    x = 85,666.44

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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.