Home / 103,953.48-155,178.23-91,342.18

Finding the Fourth Proportional to 103,953.48, 155,178.23 and 91,342.18

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Solution

The fourth proportional to 103,953.48, 155,178.23 and 91,342.18 is: 136,352.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,953.48 : 155,178.23 = 91,342.18 : x
  2. Step 2: Convert to fraction form
    103,953.48/155,178.23 = 91,342.18/x
  3. Step 3: Cross multiply
    103,953.48x = 155,178.23 × 91,342.18
  4. Step 4: Simplify right side
    103,953.48x = 14,174,318,067.80
  5. Step 5: Solve for x
    x = 14,174,318,067.80/103,953.48
  6. Step 6: Final answer
    x = 136,352.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.