Home / 105,138.02-145,094.56-62,695.64

Finding the Fourth Proportional to 105,138.02, 145,094.56 and 62,695.64

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Solution

The fourth proportional to 105,138.02, 145,094.56 and 62,695.64 is: 86,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,138.02 : 145,094.56 = 62,695.64 : x
  2. Step 2: Convert to fraction form
    105,138.02/145,094.56 = 62,695.64/x
  3. Step 3: Cross multiply
    105,138.02x = 145,094.56 × 62,695.64
  4. Step 4: Simplify right side
    105,138.02x = 9,096,796,299.72
  5. Step 5: Solve for x
    x = 9,096,796,299.72/105,138.02
  6. Step 6: Final answer
    x = 86,522.42

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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.