Home / 106,617.16-147,140.35-61,309.81

Finding the Fourth Proportional to 106,617.16, 147,140.35 and 61,309.81

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Solution

The fourth proportional to 106,617.16, 147,140.35 and 61,309.81 is: 84,612.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,617.16 : 147,140.35 = 61,309.81 : x
  2. Step 2: Convert to fraction form
    106,617.16/147,140.35 = 61,309.81/x
  3. Step 3: Cross multiply
    106,617.16x = 147,140.35 × 61,309.81
  4. Step 4: Simplify right side
    106,617.16x = 9,021,146,932.48
  5. Step 5: Solve for x
    x = 9,021,146,932.48/106,617.16
  6. Step 6: Final answer
    x = 84,612.52

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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.