Home / 102,501.08-141,451.26-57,788.76

Finding the Fourth Proportional to 102,501.08, 141,451.26 and 57,788.76

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Solution

The fourth proportional to 102,501.08, 141,451.26 and 57,788.76 is: 79,748.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,501.08 : 141,451.26 = 57,788.76 : x
  2. Step 2: Convert to fraction form
    102,501.08/141,451.26 = 57,788.76/x
  3. Step 3: Cross multiply
    102,501.08x = 141,451.26 × 57,788.76
  4. Step 4: Simplify right side
    102,501.08x = 8,174,292,915.84
  5. Step 5: Solve for x
    x = 8,174,292,915.84/102,501.08
  6. Step 6: Final answer
    x = 79,748.36

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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.