Home / 155,946-215,192.40-92,272.64

Finding the Fourth Proportional to 155,946, 215,192.40 and 92,272.64

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Solution

The fourth proportional to 155,946, 215,192.40 and 92,272.64 is: 127,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,946 : 215,192.40 = 92,272.64 : x
  2. Step 2: Convert to fraction form
    155,946/215,192.40 = 92,272.64/x
  3. Step 3: Cross multiply
    155,946x = 215,192.40 × 92,272.64
  4. Step 4: Simplify right side
    155,946x = 19,856,370,855.94
  5. Step 5: Solve for x
    x = 19,856,370,855.94/155,946
  6. Step 6: Final answer
    x = 127,328.50

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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.