Home / 157,065.31-235,426.60-77,158.27

Finding the Fourth Proportional to 157,065.31, 235,426.60 and 77,158.27

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Solution

The fourth proportional to 157,065.31, 235,426.60 and 77,158.27 is: 115,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,065.31 : 235,426.60 = 77,158.27 : x
  2. Step 2: Convert to fraction form
    157,065.31/235,426.60 = 77,158.27/x
  3. Step 3: Cross multiply
    157,065.31x = 235,426.60 × 77,158.27
  4. Step 4: Simplify right side
    157,065.31x = 18,165,108,675.86
  5. Step 5: Solve for x
    x = 18,165,108,675.86/157,065.31
  6. Step 6: Final answer
    x = 115,653.22

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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.