Home / 235,430.10-353,187.45-85,880.19

Finding the Fourth Proportional to 235,430.10, 353,187.45 and 85,880.19

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Solution

The fourth proportional to 235,430.10, 353,187.45 and 85,880.19 is: 128,835.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,430.10 : 353,187.45 = 85,880.19 : x
  2. Step 2: Convert to fraction form
    235,430.10/353,187.45 = 85,880.19/x
  3. Step 3: Cross multiply
    235,430.10x = 353,187.45 × 85,880.19
  4. Step 4: Simplify right side
    235,430.10x = 30,331,805,311.62
  5. Step 5: Solve for x
    x = 30,331,805,311.62/235,430.10
  6. Step 6: Final answer
    x = 128,835.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.