Home / 157,340.07-235,798.83-77,255.78

Finding the Fourth Proportional to 157,340.07, 235,798.83 and 77,255.78

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Solution

The fourth proportional to 157,340.07, 235,798.83 and 77,255.78 is: 115,779.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,340.07 : 235,798.83 = 77,255.78 : x
  2. Step 2: Convert to fraction form
    157,340.07/235,798.83 = 77,255.78/x
  3. Step 3: Cross multiply
    157,340.07x = 235,798.83 × 77,255.78
  4. Step 4: Simplify right side
    157,340.07x = 18,216,821,355.74
  5. Step 5: Solve for x
    x = 18,216,821,355.74/157,340.07
  6. Step 6: Final answer
    x = 115,779.92

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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.