Home / 102,358.70-141,250.38-57,041.64

Finding the Fourth Proportional to 102,358.70, 141,250.38 and 57,041.64

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Solution

The fourth proportional to 102,358.70, 141,250.38 and 57,041.64 is: 78,714.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,358.70 : 141,250.38 = 57,041.64 : x
  2. Step 2: Convert to fraction form
    102,358.70/141,250.38 = 57,041.64/x
  3. Step 3: Cross multiply
    102,358.70x = 141,250.38 × 57,041.64
  4. Step 4: Simplify right side
    102,358.70x = 8,057,153,325.82
  5. Step 5: Solve for x
    x = 8,057,153,325.82/102,358.70
  6. Step 6: Final answer
    x = 78,714.89

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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.