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Finding the Fourth Proportional to 155,510.64, 214,605 and 88,442.64

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Solution

The fourth proportional to 155,510.64, 214,605 and 88,442.64 is: 122,051.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,510.64 : 214,605 = 88,442.64 : x
  2. Step 2: Convert to fraction form
    155,510.64/214,605 = 88,442.64/x
  3. Step 3: Cross multiply
    155,510.64x = 214,605 × 88,442.64
  4. Step 4: Simplify right side
    155,510.64x = 18,980,232,757.20
  5. Step 5: Solve for x
    x = 18,980,232,757.20/155,510.64
  6. Step 6: Final answer
    x = 122,051.02

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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.