Home / 189,386.40-261,346.96-104,503.52

Finding the Fourth Proportional to 189,386.40, 261,346.96 and 104,503.52

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Solution

The fourth proportional to 189,386.40, 261,346.96 and 104,503.52 is: 144,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,386.40 : 261,346.96 = 104,503.52 : x
  2. Step 2: Convert to fraction form
    189,386.40/261,346.96 = 104,503.52/x
  3. Step 3: Cross multiply
    189,386.40x = 261,346.96 × 104,503.52
  4. Step 4: Simplify right side
    189,386.40x = 27,311,677,261.30
  5. Step 5: Solve for x
    x = 27,311,677,261.30/189,386.40
  6. Step 6: Final answer
    x = 144,211.40

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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.