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Finding the Fourth Proportional to 155,762.16, 214,919.52 and 99,152.88

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Solution

The fourth proportional to 155,762.16, 214,919.52 and 99,152.88 is: 136,810.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,762.16 : 214,919.52 = 99,152.88 : x
  2. Step 2: Convert to fraction form
    155,762.16/214,919.52 = 99,152.88/x
  3. Step 3: Cross multiply
    155,762.16x = 214,919.52 × 99,152.88
  4. Step 4: Simplify right side
    155,762.16x = 21,309,889,376.22
  5. Step 5: Solve for x
    x = 21,309,889,376.22/155,762.16
  6. Step 6: Final answer
    x = 136,810.44

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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.