Home / 155,674.24-214,830.84-90,275.74

Finding the Fourth Proportional to 155,674.24, 214,830.84 and 90,275.74

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Solution

The fourth proportional to 155,674.24, 214,830.84 and 90,275.74 is: 124,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,674.24 : 214,830.84 = 90,275.74 : x
  2. Step 2: Convert to fraction form
    155,674.24/214,830.84 = 90,275.74/x
  3. Step 3: Cross multiply
    155,674.24x = 214,830.84 × 90,275.74
  4. Step 4: Simplify right side
    155,674.24x = 19,394,013,055.82
  5. Step 5: Solve for x
    x = 19,394,013,055.82/155,674.24
  6. Step 6: Final answer
    x = 124,580.75

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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.