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Finding the Fourth Proportional to 101,681.73, 140,325.48 and 56,360.68

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Solution

The fourth proportional to 101,681.73, 140,325.48 and 56,360.68 is: 77,780.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,681.73 : 140,325.48 = 56,360.68 : x
  2. Step 2: Convert to fraction form
    101,681.73/140,325.48 = 56,360.68/x
  3. Step 3: Cross multiply
    101,681.73x = 140,325.48 × 56,360.68
  4. Step 4: Simplify right side
    101,681.73x = 7,908,839,123.31
  5. Step 5: Solve for x
    x = 7,908,839,123.31/101,681.73
  6. Step 6: Final answer
    x = 77,780.34

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1.5x scale

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.