Home / 107,179.36-147,919.70-61,869.50

Finding the Fourth Proportional to 107,179.36, 147,919.70 and 61,869.50

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Solution

The fourth proportional to 107,179.36, 147,919.70 and 61,869.50 is: 85,386.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,179.36 : 147,919.70 = 61,869.50 : x
  2. Step 2: Convert to fraction form
    107,179.36/147,919.70 = 61,869.50/x
  3. Step 3: Cross multiply
    107,179.36x = 147,919.70 × 61,869.50
  4. Step 4: Simplify right side
    107,179.36x = 9,151,717,294.23
  5. Step 5: Solve for x
    x = 9,151,717,294.23/107,179.36
  6. Step 6: Final answer
    x = 85,386.94

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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.