Home / 102,267.36-141,128.56-56,945.87

Finding the Fourth Proportional to 102,267.36, 141,128.56 and 56,945.87

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Solution

The fourth proportional to 102,267.36, 141,128.56 and 56,945.87 is: 78,585.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,267.36 : 141,128.56 = 56,945.87 : x
  2. Step 2: Convert to fraction form
    102,267.36/141,128.56 = 56,945.87/x
  3. Step 3: Cross multiply
    102,267.36x = 141,128.56 × 56,945.87
  4. Step 4: Simplify right side
    102,267.36x = 8,036,688,525.82
  5. Step 5: Solve for x
    x = 8,036,688,525.82/102,267.36
  6. Step 6: Final answer
    x = 78,585.08

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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.