Home / 120,685.39-166,547.67-66,973.89

Finding the Fourth Proportional to 120,685.39, 166,547.67 and 66,973.89

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Solution

The fourth proportional to 120,685.39, 166,547.67 and 66,973.89 is: 92,424.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,685.39 : 166,547.67 = 66,973.89 : x
  2. Step 2: Convert to fraction form
    120,685.39/166,547.67 = 66,973.89/x
  3. Step 3: Cross multiply
    120,685.39x = 166,547.67 × 66,973.89
  4. Step 4: Simplify right side
    120,685.39x = 11,154,344,955.27
  5. Step 5: Solve for x
    x = 11,154,344,955.27/120,685.39
  6. Step 6: Final answer
    x = 92,424.98

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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.