Home / 155,025.63-213,935.49-90,538.83

Finding the Fourth Proportional to 155,025.63, 213,935.49 and 90,538.83

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Solution

The fourth proportional to 155,025.63, 213,935.49 and 90,538.83 is: 124,943.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,025.63 : 213,935.49 = 90,538.83 : x
  2. Step 2: Convert to fraction form
    155,025.63/213,935.49 = 90,538.83/x
  3. Step 3: Cross multiply
    155,025.63x = 213,935.49 × 90,538.83
  4. Step 4: Simplify right side
    155,025.63x = 19,369,468,960.08
  5. Step 5: Solve for x
    x = 19,369,468,960.08/155,025.63
  6. Step 6: Final answer
    x = 124,943.66

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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.