Home / 106,746.40-147,301.68-61,426.90

Finding the Fourth Proportional to 106,746.40, 147,301.68 and 61,426.90

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Solution

The fourth proportional to 106,746.40, 147,301.68 and 61,426.90 is: 84,764.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,746.40 : 147,301.68 = 61,426.90 : x
  2. Step 2: Convert to fraction form
    106,746.40/147,301.68 = 61,426.90/x
  3. Step 3: Cross multiply
    106,746.40x = 147,301.68 × 61,426.90
  4. Step 4: Simplify right side
    106,746.40x = 9,048,285,567.19
  5. Step 5: Solve for x
    x = 9,048,285,567.19/106,746.40
  6. Step 6: Final answer
    x = 84,764.32

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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.