Home / 107,123.19-147,828.85-61,800.63

Finding the Fourth Proportional to 107,123.19, 147,828.85 and 61,800.63

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Solution

The fourth proportional to 107,123.19, 147,828.85 and 61,800.63 is: 85,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,123.19 : 147,828.85 = 61,800.63 : x
  2. Step 2: Convert to fraction form
    107,123.19/147,828.85 = 61,800.63/x
  3. Step 3: Cross multiply
    107,123.19x = 147,828.85 × 61,800.63
  4. Step 4: Simplify right side
    107,123.19x = 9,135,916,062.18
  5. Step 5: Solve for x
    x = 9,135,916,062.18/107,123.19
  6. Step 6: Final answer
    x = 85,284.20

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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.