Home / 103,637.20-155,455.80-95,472.40

Finding the Fourth Proportional to 103,637.20, 155,455.80 and 95,472.40

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Solution

The fourth proportional to 103,637.20, 155,455.80 and 95,472.40 is: 143,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637.20 : 155,455.80 = 95,472.40 : x
  2. Step 2: Convert to fraction form
    103,637.20/155,455.80 = 95,472.40/x
  3. Step 3: Cross multiply
    103,637.20x = 155,455.80 × 95,472.40
  4. Step 4: Simplify right side
    103,637.20x = 14,841,738,319.92
  5. Step 5: Solve for x
    x = 14,841,738,319.92/103,637.20
  6. Step 6: Final answer
    x = 143,208.60

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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.