Home / 149,385.60-205,868.58-106,870.32

Finding the Fourth Proportional to 149,385.60, 205,868.58 and 106,870.32

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Solution

The fourth proportional to 149,385.60, 205,868.58 and 106,870.32 is: 147,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,385.60 : 205,868.58 = 106,870.32 : x
  2. Step 2: Convert to fraction form
    149,385.60/205,868.58 = 106,870.32/x
  3. Step 3: Cross multiply
    149,385.60x = 205,868.58 × 106,870.32
  4. Step 4: Simplify right side
    149,385.60x = 22,001,241,022.55
  5. Step 5: Solve for x
    x = 22,001,241,022.55/149,385.60
  6. Step 6: Final answer
    x = 147,278.19

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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.