Home / 107,214.13-147,858.65-66,931.61

Finding the Fourth Proportional to 107,214.13, 147,858.65 and 66,931.61

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Solution

The fourth proportional to 107,214.13, 147,858.65 and 66,931.61 is: 92,305.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,214.13 : 147,858.65 = 66,931.61 : x
  2. Step 2: Convert to fraction form
    107,214.13/147,858.65 = 66,931.61/x
  3. Step 3: Cross multiply
    107,214.13x = 147,858.65 × 66,931.61
  4. Step 4: Simplify right side
    107,214.13x = 9,896,417,496.93
  5. Step 5: Solve for x
    x = 9,896,417,496.93/107,214.13
  6. Step 6: Final answer
    x = 92,305.16

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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.