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Finding the Fourth Proportional to 101,870.66, 140,483.58 and 61,028.30

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Solution

The fourth proportional to 101,870.66, 140,483.58 and 61,028.30 is: 84,160.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,870.66 : 140,483.58 = 61,028.30 : x
  2. Step 2: Convert to fraction form
    101,870.66/140,483.58 = 61,028.30/x
  3. Step 3: Cross multiply
    101,870.66x = 140,483.58 × 61,028.30
  4. Step 4: Simplify right side
    101,870.66x = 8,573,474,065.31
  5. Step 5: Solve for x
    x = 8,573,474,065.31/101,870.66
  6. Step 6: Final answer
    x = 84,160.39

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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.